Nihal walks with 12 km/h after every km, he takes the rest for 12 min after every kilometer. How much time will he take to cover 36 km distance.

The difference of cube between the two numbers is 999. If the numbers are in the ratio of 4: 3, then what is the square of the smaller number?

A work is done in 16 days by 8 labours. They worked together for 2 days and after that 8 additional labours joined them. The rest work will be finished by them in ______

If four coins are tossed together, what is the probability of at least getting 2 heads?

Geeta weighs 11.235 kg . Her sister weighs 1.4 times her weight . Find their combined weight ? 

Direction : What should come in place of the question (?) in the following question.

15  34    20   ?   25    43  30

Subjects, there were 9 boys and some girls. In a test, the mean score obtained by the boys was 13 while that obtained by the girls was 15. If the overall average was 14.28, what was the total number of students in the class? 

The difference between 90% of a number and 83% of the same number is 175. What is 99% of that number?