Question

11. Write five pairs of prime numbers less than 20 whose sum is divisible by 5.​

Answer 1

Step-by-step explanation:

if the length and breadth of a rectangle are doubled by what percent is the area increased

Answer 2

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Prime numbers less than 20 are 2, 3, 5, 7, 11, 13, 17 and 19.

(i) 2+3=5 (divisible by 5)

(ii) 2+13= 15 (divisible by 5)

(iii) 3+7=10 (divisible by 5)

(iv) 3+17= 20 (divisible by 5)

(v) 7+13=20 (divisible by 5)

Hope it helps you.....