Recent questions tagged class8

If $14 $ is added to a number , the sum is $35$ . Find the number

asked Jan 16, 2015 by meena.p

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Solve : $\large\frac{3x}{4} +\frac{x}{6} $$=22$

asked Jan 16, 2015 by meena.p

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Solve : $ 1.32\;y +0.02\;y =1.19 +y$

asked Jan 16, 2015 by meena.p

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Solve $5(P+4) -8(4-P)=25-3(7-P)+144$

asked Jan 16, 2015 by meena.p

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Which rational number is its own additive inverse ?

asked Jan 16, 2015 by meena.p

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Express $\large\frac{(-42)}{98} $ as a rational number with denominator 7

asked Jan 16, 2015 by meena.p

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A basket contains three types of fruits weighting $\large\frac{58}{3}$$kg$ in all. If $\large\frac{73}{9}$$kg$ of these be apples , $\large\frac{19}{6} $$\;kg$ be oranges and the rest pears. What is the weight of the pears in the basket ?

asked Jan 16, 2015 by meena.p

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Find the area of rectangular park which is $\large\frac{183}{5}$$m$ long and $ \large\frac{50}{3}$$m$ broad.

asked Jan 16, 2015 by meena.p

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A car is moving at an average speed of $\large\frac{202}{5}$$\;km/hr$ . How much distance will it cover in $ \large\frac{15}{2}$hours

asked Jan 16, 2015 by meena.p

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Write down the rational number whose numerator is the smallest four digit number and denominator is the largest five digit number .

asked Jan 15, 2015 by meena.p

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State True or False : O is a whole number but it is not a rational number .

asked Jan 15, 2015 by meena.p

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Write down the rational number whose numerator is $(-3) \times 4$ and whose denominator is $ (34-23) \times (7-4)$

asked Jan 15, 2015 by meena.p

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What should be subtracted from $\bigg( \large\frac{3}{4} -\frac{2}{3} \bigg) $ to get $ \large\frac{-1}{6}$?

asked Jan 15, 2015 by meena.p

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What should be added to $ \bigg( \large\frac{2}{3} +\frac{3}{5}\bigg) $ to get $\large\frac{-2}{15}$?

asked Jan 15, 2015 by meena.p

1 answer

Multiply $\large\frac{-6}{11}$ by $ \large\frac{-55}{36}$

asked Jan 15, 2015 by meena.p

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Can we divide 1 by 0.

asked Jan 15, 2015 by meena.p

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Are rational numbers always closed under division ?

asked Jan 15, 2015 by meena.p

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Simplify : $\bigg ( \large\frac{3}{11} \times \large\frac{5}{6} \bigg) -\bigg ( \large\frac{9}{12} \times \large\frac{4}{3} \bigg) +\bigg ( \large\frac{5}{13} \times \large\frac{6}{15} \bigg)$

asked Jan 15, 2015 by meena.p

1 answer

The reciprocal of a negative rational number _________

asked Jan 14, 2015 by meena.p

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One liter of petrol costs of $\large\frac{187}{4}$ . What is the cost of $35\;liters$ of petrol ?

asked Jan 14, 2015 by meena.p

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An airplane covers $1020\;km$ in an hour. How much distance will it cover in $\large\frac{25}{6}$ hours ?

asked Jan 14, 2015 by meena.p

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A cord of length $\large\frac{143}{2}$$m$ has been cut into 26 pieces of equal length . What is the length of each piece.

asked Jan 14, 2015 by meena.p

1 answer

Rita had $Rs. 300$. She spend $\large\frac{1}{3}$ of her money on notebook and $\large\frac{1}{4}$ of the remainder on stationery items. How much money is left with her ?

asked Jan 14, 2015 by meena.p

1 answer

If the area of a room is $ \large\frac{261}{4}$$m^2$ If the breadth is $\large\frac{87}{16}$meters, What is its length ?

asked Jan 14, 2015 by meena.p

1 answer

A drum full of the rice weights $ \large\frac{241}{6}$$kg$ . IF the empty drum weight $\large\frac{55}{4}$$kg$ , find the weight of rice in the drum

asked Jan 14, 2015 by meena.p

1 answer

Divide the sum of $\large\frac{-13}{5} $ and $ \large\frac{12}{7}$ by the product of $\large\frac{-31}{7} 4 and $\large\frac{-1}{2}$

asked Jan 14, 2015 by meena.p

1 answer

The cost of $2 \large\frac{1}{3}$ meters of rope is $75 \large\frac{1}{4}$. Find cost of cloth per meter

asked Jan 14, 2015 by meena.p

1 answer

Find $(m+n) \div (m-n) $ if $m = \large\frac{2}{5} \qquad n= \large\frac{1}{2}$

asked Jan 14, 2015 by meena.p

1 answer

By what number should we multiply $\large\frac{-8}{13}$ so that the product may be 24

asked Jan 14, 2015 by meena.p

1 answer

Is the difference of two rational number a rational number .

asked Jan 14, 2015 by meena.p

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What number should be subtracted from $\large\frac{-2}{3}$ to get $ \large\frac{-1}{6}$

asked Jan 14, 2015 by meena.p

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The sum of two rational number is $-2$. If one of the number is $\large\frac{-14}{5}$, find the other .

asked Jan 14, 2015 by meena.p

1 answer

What is the negative of a negative rational numbers?

asked Jan 14, 2015 by meena.p

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The product of two number is $ \large\frac{-20}{9}$. If one of the number is 4, find the other

asked Jan 14, 2015 by meena.p

1 answer

The rational number _______ is the multiplication identify for rational number .

asked Jan 14, 2015 by meena.p

1 answer

Compare the following pair of rational number $\large\frac{2}{5}$ and $\large\frac{3}{4} $

asked Jan 14, 2015 by meena.p

1 answer

What must be subtracted from $\large\frac{-2}{3}$ to get $\large\frac{3}{5}$?

asked Jan 13, 2015 by meena.p

1 answer

What must be added to $ \large\frac{-3}{8} $ to get $\large\frac{5}{16}$?

asked Jan 13, 2015 by meena.p

1 answer

Multiply $\large\frac{4}{7}$ by the reciprocal of $\large\frac{1}{63}$

asked Jan 13, 2015 by meena.p

1 answer

For any rational number the multiplication identify is _________

asked Jan 13, 2015 by meena.p

1 answer

Between any two rational number there are _______ rational numbers.

asked Jan 13, 2015 by meena.p

1 answer

The rational number ________ is the additive identify for rational number

asked Jan 13, 2015 by meena.p

1 answer

The additive inverse of $\large\frac{a}{b}$ is

asked Jan 13, 2015 by meena.p

1 answer

Sunita bought $2 \large\frac{1}{2}$$kg$ onion at $Rs\; 10$ per kg and $1 \large\frac{3}{8}$$kg$ potato at $16 \large\frac{8}{11}$ per kg. How much money did she give to the shopkeeper ?

asked Jan 13, 2015 by meena.p

1 answer

A boy walks $\large\frac{2}{3}$$km$ from a place Q. towards north and then from there $1\large\frac{3}{5}$km$ towards south. Where will he be now from Q.

asked Jan 13, 2015 by meena.p

1 answer

Subtract $1\large\frac{2}{3}$ from the sum of $\large\frac{1}{3}$ and $ \large\frac{1}{5}$

asked Jan 13, 2015 by meena.p

1 answer

Anil has to to cover $12 \large\frac{1}{2} $$km$ distance to reach school. If his speed is $5 \;km/hr$ how much time he will take to reach the school

asked Jan 13, 2015 by meena.p

1 answer

A man has Rs. 150 with him. He bought $4 \large\frac{1}{2}$ litres of milk at $Rs. 24$ per liters. How much money left with him ?

asked Jan 13, 2015 by meena.p

1 answer

A salwar needs $2 \large\frac{1}{2}$$m$ . How many salwars can be made from $27\large\frac{1}{2}\;$$m$ cloth ?

asked Jan 13, 2015 by meena.p

1 answer

Divide the sum of $ \large\frac{-2}{3}$ and $\large\frac{1}{5}$ by their product

asked Jan 13, 2015 by meena.p

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