Average weight of 10 persons is 40 kg. A new person join the group and average weight of 11 persons becomes 42 kg. What will be the weight of new person?

A can do a work in 12 days while B can do the same in 20 days. If A work for ‘x’ days while B work for ‘x+4’ days then one-third of the work is complete. Find the value of x.

In a question on division, the divisor is 7 times the quotient and 3 times the remainder. If the remainder is 28, then the dividend is 

Direction: Read the following graph carefully and answer the following questions:
The following bar graph shows the quantity(in kg) of wheat, rice, pulses and salts sold by two companies P and Q in the month of January.

What is the ratio of the total quantity (in kg) of wheat and pulses sold by company P to company Q?

Ravi drove for 4 hours at a speed of 70 miles per hour and for 2 hours at 40 miles per hour. What was his average speed (in miles per hour) for the whole journey?

Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is

In △ABC, D and E are points on the sides AB and AC, respectively, such that DE || BC and DE: BC=6:7. (Area of △ ADE): (Area of trapezium BCED) = ?

What is the value of y in the following equation?
(1÷23) of [2{3 + 4(35 + 7)}] = y