1. If √1 x/9 13/9, then the value of x is

(a)1439/9
(b) 160
(c)1443/9
(d) 169

2. The sum of two numbers is 24 and their product is 143. The sum of their square is

(a) 296
(b) 295
(c) 290
(d) 228

3. Which one of the following will completely divide 5⁷¹ + 5⁷² + 5⁷³ ?

(a) 150
(b) 160
(c) 155
(d) 30

4. L.C.M. of two numbers is 120 and their H.C.F. is 10. Which of the following can be the sum of those two numbers?

(a) 140
(b) 80
(c) 60
(d) 70

5. When ‘n’ is divided by 5 the remainder is 2. What is the remainder when n² is divided by 5?

(a) 2
(b) 3
(c) 1
(d) 4

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Answers:
1. (b) 2. (c) 3. (c) 4. (a) 5. (d)