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

Vikas can cover a distance in 1 hr 24 min by covering (left(dfrac{2}{3}right)^{rd})of the distance at 4 kmph and the rest at 5kmph.

A, B and C play a cricket match.

A money lender lent Rs. 1000 at 3% per year and Rs. 1200 at 5% per year.

5 points are marked on a straight line and another 6 points are marked on a second straight line with no points in common.

A car starts from X and moves towards Y.

Find the greatest possible length which can be used to measure exactly the lengths 4 m 95 cm, 9 m and 16 m 65 cm.

The average weight of A, B and C is 45 kg.

A bus covered a distance of 250 km, partly at an average speed of 40 kmph and partly at 60 kmph.

In a barrel of juice there is 30 liters; in a barrel of beer there are 60 liters.

If log10 7 = a, then log10 (1/70)is equal to:

Triathlete Dan runs along a 2-mile stretch of river and then swims back along the same route.

A heap of coconuts is divided into groups of 2, 3 and 11 and each time one coconut is left over.

If the average marks of three batches of 65, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is

A certain bag contains 60 balls — 22 white, 18 green, 2 yellow, 15 red, and 3 purple.

The average height of 35 boys in a class was calculated as 185cm.

A person borrows Rs.5000 for 2 years at 4% p.a. simple interest.

Excluding stoppages, the speed of a bus is 80 km/hr and including stoppages, it is 70 km/hr.

In a group of 50 people, 25 have visited Iceland and 23 have visited Norway.

The cost price of a radio is Rs.4800 and it was sold for Rs.4400, find the loss %?

What is the sum of the greatest common factor and the lowest common multiple of 36 and 16?

A student scored an average of 65 marks in 3 subjects: Physics, Chemistry and Mathematics.

Pat, kate and mark charged a total of 144 hours to a certain project .

A recipe requires 2 1/2 (mixed number) cups of flour 2 3/4 (mixed number) cups of sugar and 1 1/3 (mixed number) cups of milk to make one cake.

Zinc and copper are melted together in the ratio 9 : 11.