IBM Company Numerical Ability Ratio and Proportion

A school is going to have 1000 students in near future. 1/4th use scooter, 1/5th use bikes and 1/9th use cycle. Find the number of students at present.

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plz ..provide the solutiion....tmrw i have a xam...ayshu.530@gmail.com
10 years agoHelpfull: Yes(0) No(1)

561 aapprox
10 years agoHelpfull: Yes(0) No(0)

IBM Other Question

Average of a couple 10 years ago was 25. The average remains same after having a child and twins after 3 years. What is the present age of the first child. Two trains of equal length when moving in opposite direction takes 5 sec. to cross each other completely and when moving in same direction takes 15 sec. Find the ratio of their speed.