Recent questions in Olympiad-Math

Bala had some packs of cards (each pack contains 7 cards). He gave away 22 cards to his friend Aditya. If a is the number of packs Bala originally had, how many cards are left with Bala ?

asked Oct 14, 2015 by pady_1

1 answer

In a school 36% students are girls. If there are 364 less girls than boys. Find total number of students in the school.

asked Oct 14, 2015 by pady_1

1 answer

7th grade has collected $200 for a field trip that would cost at least $600. The teachers decided to ask $50 from additional students to cover the cost. How many students must pay to cover the cost?

asked Oct 14, 2015 by pady_1

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Mark had some money. He gave half of that to his brother and then he gave another $5$ to his sister. He now has $20$. How much money Mark had in the beginning?

asked Oct 14, 2015 by pady_1

1 answer

The sum of three consecutive numbers is 72. What is the smallest of these number?

asked Oct 14, 2015 by pady_1

0 answers

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus.

asked Oct 14, 2015 by pady_1

1 answer

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost?

asked Oct 14, 2015 by pady_1

0 answers

Evaluate the expression −9+\large\frac{n}{2}−5n using n=4

asked Oct 14, 2015 by pady_1

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Sarah babysat 7 times as many hours during summer break as she did during spring break. She babysat a total of 56 hours during both breaks. How many hours did Sara babysit during spring break?

asked Oct 14, 2015 by pady_1

1 answer

Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begin?

asked Oct 14, 2015 by pady_1

1 answer

Add: 14x + 10y – 12xy – 13, 18 – 7x – 10y + 8xy, 4xy

asked Oct 14, 2015 by pady_1

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What is the value of x that make this statement true? 4x+15=2x+63

asked Oct 14, 2015 by pady_1

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What should be added to x^2 + xy + y^2 to obtain 2x^2 + 3xy?

asked Oct 14, 2015 by pady_1

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Find the value of 100 - 10x^3 for x = 2.

asked Oct 14, 2015 by pady_1

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The number of children at the library was 3 times the number of adults. The total number of people at the library was 48. How many children were at the library.

asked Oct 14, 2015 by pady_1

1 answer

Simplify these expressions and find their values, if x = 3, a = – 1, b = – 2. 3x – 5a – x2+ 9b

asked Oct 14, 2015 by pady_1

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Simplify combining like terms: 3a – 2b – ab – (a – b + ab) + 3ab + b – a

asked Oct 14, 2015 by pady_1

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Kim is 3 times as old as her cousin. The total of their ages is 36 years. How old is Kim's cousin?

asked Oct 14, 2015 by pady_1

1 answer

What should be taken away from 3x^2 – 4y^2 + 5xy + 20 to obtain – x^2 – y^2 + 6xy + 20?

asked Oct 14, 2015 by pady_1

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Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

asked Oct 14, 2015 by pady_1

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What is the correct solution for x in the following equation: 5x+11=41

asked Oct 14, 2015 by pady_1

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Simplify the following: 2y + 9 + 8y + 7

asked Oct 14, 2015 by pady_1

1 answer

What is the value of the expression below when t=2? (7+t)−(t+4)

asked Oct 14, 2015 by pady_1

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Simplify 2x+3x^2−5x+4−7x^2

asked Oct 14, 2015 by pady_1

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Evaluate 12(x-t), if x = 7 and t = 2.

asked Oct 14, 2015 by pady_1

1 answer

Sonia had some bats, she gave y bats to her friends. If 4 bats are remaining with her, how many bats she had earlier ?

asked Oct 14, 2015 by pady_1

1 answer

Subtract $-5y^2 - 4y + 5$ from the sum of $-4y^2 - 3y + 5$ and $3y^2 + 5y - 3$, and find its value when $y = 2.$

asked Oct 14, 2015 by pady_1

1 answer

3x^2 + 4x + 9x + 4x is a,

asked Oct 14, 2015 by pady_1

0 answers

Shilpa transfers apples from one larger box to smaller boxes. When the larger box is emptied, apples fill 4 smaller boxes and still 15 apples remained outside. If the number of apples in each smaller box is x, what was the number of apples in the larger box?

asked Oct 14, 2015 by pady_1

0 answers

Sita had some books, she gave m books to her friends. If 4 books are remaining with her, how many books she had earlier ?

asked Oct 14, 2015 by pady_1

0 answers

Gita is standing in a row. If she is n^{th} from the front and m^{th} from the back, how may people are standing in the row ?

asked Oct 14, 2015 by pady_1

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The dimensions of rectangular field are 14x - 12 and 11x + 15 units respectively. The value of x for which it would be square is

asked Oct 14, 2015 by pady_1

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If x = 6, solve 4(4x + 7) + 3(4 + (4 + 7))

asked Oct 14, 2015 by pady_1

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A number is 13 more than a second number. If the sum of both these numbers is 37, find the first number.

asked Oct 14, 2015 by pady_1

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Solve the equations to find value of a in equation 0.8a = 0.4

asked Oct 14, 2015 by pady_1

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What must be added to 2p^2 - 8 to get 3p^2 - 5p - 4.

asked Oct 14, 2015 by pady_1

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A number is 6 more than a second number. If the sum of both these numbers is 40, find the first number.

asked Oct 14, 2015 by pady_1

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The difference of two numbers is -42. 2 times the smaller number minus 3 times the larger number gives -137. Which is the larger number?

asked Oct 14, 2015 by pady_1

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If * be an operation such that ab = ab(a+b)(a-b), then 82 equals ________

asked Oct 14, 2015 by pady_1

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Find the value of z from equation \large\frac{2z}{4} + \large\frac{-5z + 5}{4} = \large\frac{-4z + 13}{4}

asked Oct 14, 2015 by pady_1

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Raj spends Rs. x daily and saves Rs. y per week. What is his income for 2 weeks ?

asked Oct 14, 2015 by pady_1

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A rectangular ground's length is 2 times its breadth. If its perimeter is 60 meters, what is the length of the ground in meters.

asked Oct 14, 2015 by pady_1

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In a school, 36% of girls study math and remaining girls are 256. The number of girls in the school are

asked Oct 14, 2015 by pady_1

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if P= -6b^2 + b + 8, Q=3b^2 - 3b + 9 and R=7b^2 - 8b + 3, find (P-Q+R)

asked Oct 14, 2015 by pady_1

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George bought a total of 19 hens and ducks. He got a discount of Rs. 0.80 for each hen and a discount of Rs. 1.40 for each duck. He saved Rs. 20 in total. How many ducks did he buy?

asked Oct 14, 2015 by pady_1

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The algebraic expression of the statement "Four-fifth of x multiplied by the difference of a and b" (Assume that a is less than b) ?

asked Oct 14, 2015 by pady_1

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Add a^2 + b^2 + c^2 – 3abc and a^2 – b^2 + c^2 + abc

asked Oct 14, 2015 by pady_1

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What is the coefficient of y in the term \large\frac{4}{3}x^2yz^2.

asked Oct 14, 2015 by pady_1

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Subtract 1 – 5y^2 from y^3 + 7y^2 + y + 1

asked Oct 14, 2015 by pady_1

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By how much is a^2 – 7a + 5 less than 3a^2 + 2a + 5?

asked Oct 14, 2015 by pady_1

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