Granite is not formed through sedimentation or as a sedimentary rock. Granite is an igneous rock that forms through the crystallization of magma deep within the Earth's crust.
There are only 220 students living in hostel. If 20 students left hostel, then overall expenditure of mess is reduced by Rs. 800 weekly but per student ...
Average of 17 numbers is 81. If the average of the first six and last eight numbers is 91.5 and 71.5 respectively, and if the ninth number is 20% more t...
Average of 20 numbers is 90. Average of first 8 numbers is 114 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numb...
Mr. X invested Rs. 600 in two schemes, A and B in the ratio of 7:3, respectively. Scheme A and B are offering simple interest at rate of 4% per annum an...
The average of five even numbers is 72. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
The average marks scored by 20 boys and 45 girls are 88 and 94 respectively. Find the average marks scored by all the students together. (Answer should ...
Average age of A, B and C is 20 years. Average age of B and C was 12 years when A was born. If B is 21 years old, then, find the age of C, 6 years hence.
The average of 9 numbers is 100. The average of the first 4 numbers is 65 and the average of the last 4 numbers is 40. What is the 5th number?
The average age of A and B is 22 years. If A is to be replaced by C, the average would be 21 years. The average age of C and A is 23 years. Find the age...
There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg ...
