A helicopter, at an altitude of 1500 metre, finds that two ships are sailing towards it, in the same direction. The angles of depression of the ships as observed from the helicopter are 60° and 30° respectively. Distance between the two ships, in metre is

If 1,000 is divided into three parts in the ratio 2 : 3 : 5, find the value of the smallest part.

An amount doubles itself in 5 years with simple interest. What is the rate of interest per year?

When a number is divided by 15, 20 or 35, each time the remainder is 8. Then the smallest number is 

Amount invested by C is Rs 4000 more than that of A and after 9 months, A and C both withdrew their whole amount and B joined the business with Rs. 24,000. If at the end of year, ratio of profit share of A to that of C is 2: 3 then, find profit share by B out of total profit of Rs 14000? 

Directions : What will come in the place of the question mark (?) in the following number series?

2  4  11  37  ? 

A scooter was purchased for Rs 30,000 and Rs 3,000 was spent to repair it. It was sold for Rs 39,600. What was the profit percentage?

Average salary of Santosh and Renu is Rs 3600. If salary of Santosh and Renu is increased by 50% and 30% respectively then their total salary is increased by 35% then find salary of Renu is what percent more or less than salary of Santosh before increment?