For the following questions answer them individually
A dog takes 6 leaps for every 4 leaps of a hare and 2 leaps of the dog are equal to 5 leaps of the hare. What is the ratio of their speed ?
After replacing an old member by a new member, it was found that the average age of 5 members of a club is the same as it was 3 years ago. The difference between the ages of the replaced and the new member is
A shopkeeper proposes to sell his goods on cost price but uses 800 gm instead of 1 kg. What is his gain percent ?
A fruit seller purchased 50 kg of mangoes at the rate of ₹ 22 perkilo. He sold some of the mangoes at the rate of ₹ 30 per kilo and the rest at the rate of ₹ 20 per kilo. If he incurred 25% profit overall, the amount of mangoes that can be sold at the rate of ₹ 20 per kilo is
If a number is decreased by 10%, it becomes 54. By what percent should it be increased to make it 72 ?
Due to increase in cost of cooking oil by 40%, the consumption of oil by a consumer is decreased by 20%. Then the expenditure for oil of that consumer will be changed by
The simple interest in 3 years and compound interest in 2 years on a certain sum of money atthe same rate are ₹ 1,200 and ₹ 832 respectively, The principal is
The area of a trapezium is $$384 cm^2$$ its parallel sides are in the ratio 3:5 and the perpendicular distance between them is 12 cm. If each of the parallel sides are increased by 2 cm, then the area of the trapezium increases by
The perimeter of an equilateral triangle is 36 cm. The area of the inscribed circle of the triangle is (in sq. cm)