2.
If four seventh of 49% of a number is 35, find the number.
4.
If 243 is the third proportional of a : b, where b : a =9:1, find the values of a and b.
5.
What is the quotient when (x³ − 8) is divided by (x² + 2x +4)?
6.
Find the degree of (x² – x )²
7.
For what value of K is 16x² + 24xy + K a perfect square?
10.
Period of the decimal 2.3636363……. is :
11.
If x% of 2.4 is 18/25, then find x.
12.
What distance will a train cover in 1.2 minute travelling at 72 km/h ?
13.
If two numbers are equal, then:
14.
4n = 4096, then find 2n – 5.
15.
The L.C.M. of two numbers is 525 and the product of two numbers is 2625. Find the H.C.F.
16.
A shopkeeper bought 10 kg. of rice for Rs 210, 5 kg. of rice at Rs 16 per kg and 0.5kg. for Rs 20. Find the average cost of the rice per kg.
17.
Number of terms in the expansion (a + b) (c + d) is ——–
18.
What should be subtracted from x³ + 2x² -3x +6, so that the difference is a multiple of x − 2 ?
19.
ab = ba but b ≠ a, then find a + b.
20.
Find the total surface area of a cube of edge 12.5 cm.
