Question

6. What will be the three rational numbers greater than -2 ?
A. -2, 3, -4 B. -3/2, -1, -1/2 C. -1, 2, -3 D. -2, +2, -3

7. Which rational number lies between 3/5 and 3/4 ?
A. 4/5 B. 7/10 C. 1/2 D. 6/5

8. If Dividend = (p × quotient) + remainder, then p stands for
A. dividend B. remainder C. divisor D. quotient

9. On dividing 214*6587 by 9, the remainder is 0. What is the value of * ?
A. 0 B. 1 C. 2 D. 3

10. How many 3- digit numbers will be divisible by 4 ?
A. 224 B. 225 C. 226 D. 227

11.What will be the smallest square number that is divisible by each 4, 9 and 10 ?
A. 900 B. 3600 C. 1200 D. 400

12. Find : √(1³ + 2³ + 3³)
A. 5 B. 6 C. 7 D. 8

13. Which of the following numbers is a perfect cube?
A. 400 B. 900 C. 729 D. 800​

Answer 1

Answer:

6: Ans B

7: Ans B

9: Ans 3

10: Ans A

11: Ans B

12: Ans B

13: Ans C=9^3

Answer 2

Given:   rational number - 2

To Find : three rational numbers greater than -2

A. -2, 3, -4

B. -3/2, -1, -1/2

C. -1, 2, -3

D. -2, +2, -3

Solution:

rational numbers greater than -2

are -3/2 , - 1  and - 1/2

Hence option  B) is correct

rational number lies between 3/5 and 3/4

12/20   and 15/20

7/10  = 14/20

Hence 7/10  lies between 3/5 and 3/4

option B) is correct

Dividend = (p × quotient) + remainder

p = divisor

option  C. divisor

214*6587 by 9, the remainder is 0

Sum of digits should be divisible by 9

2 + 1 + 4 +  *  + 6 + 5 + 8 + 7

= 33 + *

* = 3  as 36 is divisible by 9

Hence option  D) 3

3- digit numbers will be divisible by 4

100 is first    996 is last

996  = 100 + (n - 1) 4

=> n = 225

option B)  225

smallest square number that is divisible by each 4, 9 and 10

LCM ( 4 ,9 , 10)  = 180  

180 = 2 * 2 * 3 *  3 * 5

5 is single

hence 180 * 5 = 900 is  smallest square number that is divisible by each 4, 9 and 10

option  A. 900

√(1³ + 2³ + 3³) = √36   6   option B)

729 = 9³

Hence Option C) 729

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