2.
If p + q =15 and pq=54, then p – q can be
3.
Which of the following yields maximum interest for 300 months?
4.
The average weight of 30 boys is 57 kg and average weight of 25 girls is 35 kg. Find the average weight of the class.
5.
Find the degree of q[(x³ – x²)²].
6.
Find the degree of (x² – x )²
7.
Find the number by which 2−6 be multiplied so that the product is 2?
9.
Rs 2000 is lent out at 0.3% per month for 10 years under simple interest. Calculate the amount.
10.
What is the remainder when (2x² + 3x +7) is divided by (x + 2)?
11.
If two numbers are equal, then:
12.
What is the smallest positive irrational number?
13.
The HCF of two numbers is 6 and the product of two numbers is 360. Find the LCM of the numbers.
14.
Find the total surface area of a cube of edge 12.5 cm.
15.
Which of the following pairs of integers have 5 as a difference ?
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.
If 64 > x³, then the greatest possible integer value of x is :
18.
√X is a perfect square. Which of the following is/are true?
19.
If x : y =2 : 3 and z : y =4 : 6, then find x : z
20.
ab = ba but b ≠ a, then find a + b.
