Q&Answers: Math/Chemistry/Physics Problems + Solutions

At what time between 3 o'clock and 4 o'clock, both the needles of a clock will coincide each other?

When f is divided by 5, the remainder is 3.

A reduction of 50% in the price of bananas would enable a man to obtain 64 more for Rs.40, what is reduced price per dozen?

In his pocket, a boy has 5 red marbles, 6 blue marbles, and 7 green marbles.

Two hundred multiples of seven are chosen at random, and 200 multiples of eight are chosen at random.

Two pipes A and B can separately fill a tank in 12 and 15 minutes respectively.

How many times does the minute hand and the second hand make a straight line?

When 5 + 1 = 56, 6 + 1 = 67, 7 + 1 = 78, then 8 + 1 = ?

Dacid obtained 96, 95, 82, 97 and 95 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology.

What is the sum W of all 3 digit numbers that leave a remainder of '2' when divided by 3?

Company T produces two kinds of stereos: basic and deluxe.

Steve traveled the first 2 hours of his journey at 40 mph and the last 4 hours of his journey at 80 mph.

A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 29 m * 2 m * 0.75 m?

34.99 + 240.016 + 23.98 = ?

An analysis of the monthly incentives received by 5 salesmen : The mean and median of the incentives is $7000.

In how many of ways can 5 balls be placed in 5 tins if any number of balls can be placed in any tin?

A baker charges Q dollars for a birthday cake.

A man saves Rs 500 at the end of each year and lends the money at 5% compound interest.

Because he’s taxed by his home planet, Mork pays a tax rate of 30% on his income, while Mindy pays a rate of only 20% on hers.

Walking with 4/5 of my usual speed, I arrive at the bus stop 9 minutes later than normal.

There are 15 boys and 10 girls in a class.

A reduction of 10% in the price of salt enables a lady to obtain 20kgs more for Rs.400, find the original price per kg?

A train 120 m long crosses a platform 220 m long in 20 sec; find the speed of the train?

The product of two numbers is 2028 and their H.C.F is 13.