A contractor undertook to finish a work in 92 days and employed 110 men. After 48 days, he found that he had already done ⅗ part of the work, the number of men he can withdraw so that the work may still be finished in time is :

The length of the largest possible rod that can be placed in a cubical room is 35√3 mt. The surface area of the largest possible sphere that fit within the cubicle room assuming (π = 22/7) in square mt is

If the diameter of a circle is increased by 8% then its area in increase by :

While selling to the retailer, a company allows 30% discount on the marked price of their products. If the retailer sells those products at marked price, his profit will be :

A trader allows two successive discounts of 30% and 15% for selling an article. If he gets रू० 476 for t5the articles, its marked price is :

A profit of 105 is made after giving a discount of 5% in a T.V. If the marked price of the T.V. is रु० 2640.00, the cost price of the TV was :

The ratio of two numbers is 3 : 4 and their H.C.F. is 4 : then their LCM is :

A cyclist, after cycling a distance of 70 km on the second day finds that the ratio of distance covered by him on the first covered by him on the first two days is 4 : 5. If he travels a distance of 42 km. on the third day, than the ratio of distances traveled on the third day and he first day is :

If 5.5 off a = 0.65 of b, then a : b is equal to 

From a class of 42 boys, a boy aged 10 year goes away and in his place. Iff on account of this change, the average age of the boys in that class increases by 2 month, the age of the newcomer is :