Question
There are two trains A and B. A start from point X at 8
AM towards point Y. Another train B starts at 9 AM from point Y. If they meet at 11 AM and speed of A is 24km/hr, while that of B is 36 km/hr. Find distance between X and Y.Solution
Speed of train A = 24 kmph Speed of train B = 36 kmph Time taken by train A to meet train B at 11 AM = 3 hrs Time taken by train B to meet train A at 11 AM = 2 hr Distance travelled by train A = 3 × 24 = 72 km Distance travelled by train B = 2 × 36 = 72 km Therefore, total distance between X and Y = 72 + 72 = 144 km
13.5% of (100 + ?) = 27
15% of 1800 + 22 = ?Â
`sqrt(7744)` Â Â -Â `sqrt(4761)` +Â `sqrt(8281)` Â +Â `sqrt(5625)` + ? = 1856Â
15% of 360 × 20% of ? = 324
Simplify the following expression:
((32)4 - 1)/33×31× (210+1)
1672 ÷ 19 = ?% of 220
[192 ÷ 6 × 5] ÷ (? + 3) = 20Â
- What will come in place of the question mark (?) in the following questions?
144÷12+18×2=? 140% of 1270 + 60% of 2085 = 1881 + ‘?’% of 287