From the top of an upright pole 17.75 m high, the angle of elevation of the top of an upright tower was 60⁰. If the tower was 57.75 m tall, how far away (in m) from the foot of the pole was the foot of the tower?

A man purchased a bed sheet for Rs. 450 and sold it at again of 10 % calculated on the selling price. The selling price of the bedsheets was 

If two persons, with equal abilities, can do two jobs in two days then 100 persons with equal abilities can do 100 similar jobs in 

There are 100 students in 3 sections A, B and C of a class. The average marks of all the 3 sections was 84. The average of B and C was 87.5 and the average marks of A is 70. The number of students in A was. 

If a=x+y, b=x-y, c=x+2y, then $$ {a^2+b^2+c^2}-ab-bc-ca $$ is

A sum of money is to be divided among four persons in the ratio of 2:3:4:5. Out of the four, one person gets Rs. 200 more than the other and Rs.100 less than another. What is the sum?

Ranjan made a profit of 25% when selling a TV set at Rs. 3000. If he now has to pay Rs. 500 more for the set, what should be his new selling price in order to make the same percentage of profit?

Perimeter of rectangle with length 76 meter and breadth 48 meter: