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Recent questions tagged q13-a

A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the probability that all the three balls are white

asked Jul 8, 2014 by sreemathi.v

1 answer

Fill in the blanks :$P(A)=\large\frac{1}{3}$$,P(B)=\large\frac{1}{5}$$,P(A\cap B)=\large\frac{1}{15}$$,P(A\cup B)$=____________

asked Jul 1, 2014 by sreemathi.v

1 answer

The probability that a contractor will get a plumbing contract is $\large\frac{2}{3}$ and an electric contract is $\large\frac{4}{9}$.If the probability of getting at least one contract is $\large\frac{4}{5}$,find the probability that he will get both the contracts.

asked Apr 22, 2013 by sreemathi.v

0 answers

A dice is tossed three times.Getting a '3' or a '5' is considered a success.Find the probability of at least two successes.

asked Apr 19, 2013 by sreemathi.v

1 answer

A bill of exchange for Rs.750.00 was drawn on 3rd April,2000 payable at 3 months after date.It was discounted on 24th April,2000 at 5% per annum.What was the discounted value of the bill?

asked Apr 18, 2013 by sreemathi.v

0 answers

Find the Banker's discount and the discounted value of a bill worth Rs.600 drawn on May 15,2005 for 3 months and discounted on July 20,2005 at 5% per annum.

asked Apr 17, 2013 by sreemathi.v

0 answers

A bill was drawn on 14th June 2006 at 8 months after date and was discounted on 24th September 2006 at 5% p.a.If the banker's gain on the basis of simple interest is Rs. 3,calculate the sum for which the bill was drawn.

asked Apr 16, 2013 by sreemathi.v

0 answers

The banker's gain on a certain bill due 6 months hence is Rs. 100,the rate of interest being 10% per annum.Find the face value of the bill.

asked Apr 15, 2013 by sreemathi.v

0 answers

A bill of Rs. 84,150 is drawn on 22nd April,2002 at 11 months and is discounted on 11th january 2003.Find the banker's gain if the rate of interest is 10%.

asked Apr 15, 2013 by sreemathi.v

0 answers

A company produces two types of items,P and Q.Manufacturing of both items requires the metals gold and copper.Each unit of item P requires 3 gms of gold and 1 gm of copper while that of item Q requires 1 gm of gold and 2 gms of copper.The company has 9 gms of gold and 8 gms of copper in its store.If each unit of item P makes a profit of Rs. 50 and each unit of item Q makes profit of Rs. 60,determine the number of units of each item that the company should produce to maximize profit.What is the maximum profit?

asked Apr 12, 2013 by sreemathi.v

0 answers

The price of a tape recorder is Rs. 1,661.A person purchases it by making a cash payment of Rs. 400 and agrees to pay the balance with due interest in 3 half-yearly equal installments.If the dealer charged interest at the rate of 10% per annum compounded half-yearly.Find the value of the installment.

asked Apr 11, 2013 by sreemathi.v

0 answers

Two tailors P and Q earn Rs. 150 and Rs. 200 per days respectively.P can stitch 6 shirts and 4 trousers a day,while Q can stitch 10 shirts and 4 trousers per day.How many days should each work to produce at least 60 shirts and 32 trousers at minimum labour cost?

asked Apr 10, 2013 by sreemathi.v

0 answers

Determine whether the given planes are parallel or perpendicular, and in case they are neither, then find the angles between them. $(a)\; 7x + 5y + 6z + 30 = 0 \: and \: 3x -y -10z + 4 = 0 $

asked Dec 14, 2012 by thanvigandhi_1

1 answer

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