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

Bert left the house with N dollars.

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The average weight of 49 students in a class is 52 kg. 5 of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class.

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Seven children — A, B, C, D, E, F, and G — are going to sit in seven chairs in a row.

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Four different objects 1, 2, 3, 4 are distributed at random in four places marked 1, 2, 3, 4.

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In order to fulfill a local school’s request for x cakes, a parents agreed to each bake an equal number of cakes.

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By selling a watch for Rs.720/-, a man loses 20% what is that watch cost price?

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What is the difference between local value & face value of 6 in the numeral 65793?

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Calculate the speed of a boat in still water (in km/hr) if in one hour, the boat goes 10 km/hr downstream and 4 km/hr upstream.

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Let f(x) = x^2 + bx + c. If f(6) = 0 and f(-2) = 0, then b + c =

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If 9^y = 3^16, what is y?

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The last time Rahul bought Diwali cards, he found that the four types of cards that he liked were priced Rs.9.00, Rs.7.00, Rs.4.50 and Rs.5.50 each.

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A man buys an article and sells it at a profit of 20%.

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If the price of petrol increases by 25% and Raj intends to spend only an additional 15% on petrol, by how much will he reduce the quantity of petrol purchased?

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During one year, the population of town increased by 5% .

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At Didymus Corporation, there are just two classes of employees: silver and gold.

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In how many ways can a Chief Minister and a Vice Minister be elected from a team of 10 members?

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250% of x is increased by 250% to become 30 . what is the value of x?

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(565945 x 121) = ?

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Company ABC imported 10,500 widgets made of either brass or aluminum.

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A, B and C enter into a partnership with a capital in which A's contribution is Rs.

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If n is a positive integer and n^3 is a multiple of 550, what is the least possible value of n?

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A candidate got 35% of the votes and lost to the rival by 1650 votes.

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18 men can complete a piece of work in 20 days.

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Two spherical balls lie on the ground touching.

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