Which of the following statement is correct?
I. Friction is caused by the irregularities on the two surfaces in contact
II. Friction is a necessary evil
Friction is caused by interlocking of irregularities present on the surfaces in contact. Friction is said to be a necessary evil because it is useful as well as harmful. Friction helps us to walk, write, hold things, lift objects.
The largest three-digit number which gives the same remainder 3 when divided by 4, 9, 6 is:
A Student was asked to add 8 and subtract 5 from a number. By mistake, he added 5 and subtracted 8. If his answer is 11, what should be the correct answer?
Find the average of first 17 whole numbers.
How many 3-digit numbers are completely divisible by 5?
How many 100 digit positive numbers are there?
Find the number of zeroes in the product of 60 × 61 × 62 × ........ × 80?
Find the average of first 7 whole numbers.
