1.
If four seventh of 49% of a number is 35, find the number.
2.
If x% of 2.4 is 18/25, then find x.
4.
What is the multiplicative identity element in the set of integers?
5.
What distance will a train cover in 1.2 minute travelling at 72 km/h ?
6.
What is the quotient when (x³ − 8) is divided by (x² + 2x +4)?
7.
What is the additive identity element in the set of whole numbers?
8.
Find the degree of q[(x³ - x²)²].
9.
If x and y are the smallest and the greatest four digit numbers formed by using 1, 5, 0 and 9, then find y - x.
10.
Find the H.C.F. of 63 and 109.
11.
If the sum of two integers is − 35 and one of them is 17, then find the other integer.
12.
2a = 4b = 8c = 64. Find a² + b² + c².
13.
A 240 m long train running at 72 km/h crosses another train coming from opposite direction at a speed of 90 km/h in 12 seconds. Find the length of the other train.
14.
What do you call two fractions, whose product is 1 ?
15.
4n = 4096, then find 2n – 5.
16.
Period of the decimal 2.3636363....... is :
17.
B can do three - fourth of a work in 6 days and A can do half of the same work in 4 days. In how many days can both A and B can do the same work?
18.
If two numbers are equal, then:
19.
What is the remainder when (2x² + 3x +7) is divided by (x + 2)?
20.
If r³ = 1728, then find r.
