# Category Archives: QA – Placements

Puzzle: Rama started on a quest of visiting temples, with few coins in his pockets. As soon as he visits any temple, the money in… Read More
Question 1: If the diagonal of cube is √18 cm, then its volume is Solution : Let the side of the cube is x cm. We know… Read More
Question 1: The cost price of 12 books is equal to the selling price of 10 books. The gain percent is : Solution : Given… Read More
Question 1: How many number greater than ten thousand can be formed from the digits 0, 1, 2, 3, 4 without repetition ? Solution : In… Read More
Question 1: If a card is picked up random from the a pack of 52 cards. Find the probability that it is a king or… Read More
Question 1: Find the 1st term of the AP whose 7th and 11th terms are respectively 37 and 57. Solution :We know nth term of AP… Read More
Question 1: If the compound interest on a certain sum for 2 years at 5% per annum is Rs 410, the simple interest at the… Read More
Question 1: A sum of money becomes 6/5 of itself in 3 years at a certain rate of simple interest. The rate of interest per… Read More
Question 1: If x + 1/x = -2, then the value of x1000 + 1/x1000 is Solution. x= -1 satisfy the above eq. So, (-1)1000 + 1/(-1)1000… Read More
Question 1: Find the maximum value of (2sinθ + 3 cosθ) Solution : Max value of (asinθ + bcosθ) = √(a2 + b2)) So, max value =… Read More
Question 1: 30 litres of a mixture of milk and water contains 10% of water, the water to be added, to make the water content… Read More
Question 1: A square of perimeter 88cm and a circle of perimeter 88cm given. Which figure has larger area and by how much? Solution: Perimeter of… Read More
Question 1: The ratio of the age of a man and his wife is 6:5. After 16 years, the ratio becomes 10:9. Find the husband’s… Read More
Question 1 : Find the number of zeroes in 155! Solution: Multiplication of 2×5 results into 10. So number of zeroes depend on the number of… Read More
Question 1: A racing car covers a certain distance at a speed of 320 km/hr in 5 hours. To cover the same distance in 5/3… Read More