Two boys begin together to write out a booklet containing 817 lines. The first boy start with first line, writing at rate of 200 lines an hour and the second boys start with a last line. He writes line 817 and so on backwards proceeding at the rate of 150 lines an hour. An what line will they meet?

Given M₁ = 10
D₁ = 8, M₂= ? and D₂ = 1/2
From M₁ D₁ = M₂ D₂
? 10 x 8 = M₂ x 1/2
? M₂= 10 x 8 x 2
? M₂ = 160

Work completed by A + B in one day = 1/6 + 1/3 = 1/2
? Time taken by A + B to complete the work = 2 days.

(?)^1/2 = (5568 ÷ 87)^1/3 + (72 x 2)^1/2
= (64)^1/3 + (144)^1/2
? ? = (4 + 12)² = 256

Given Expression = ( .803 x .647 + .803 x .353 )
= 803 x (.647 + .353)
= .803 x 1
= .803

? Anup's age = (5 - 2) years = 3 years
Let Randheer's age be x years.
Then, (x - 6)/18 = 3
? x = 54 + 6 = 60

? Total age of father and mother = 35 x 2 = 70 yr
and total age of father, mother and son = 27 x 3 = 81 yr
&there4: Age of son = 81 -70 = 11 yr

356 x 936 - 356 x 836 = 356 x (936 - 836 )
= 356 x 100
= 35600.

It is (30 x 80)/100 - (4 x 25)/ 5 = 24 - 20 = 4