Telangana SCERT Solution Class VIII (8) Math Chapter 15 Playing with Numbers Exercise 15.6
(1) Find the sum of integers which are divisible by 5 from 1 to 100.
(2) Find the sum of integers which are divisible by 2 from 11 to 50.
(3) Find the sum of integers which are divisible by 2 and 3 from 1 to 50.
(4) (n3 – n) is divisible by 3. Explain the reason.
(5) Sum of ‘n’ odd number of consecutive numbers is divisible by ‘n’. Explain the reason.
(6) Is 111 + 211 + 311 + 411 divisible by 5? Explain.
(7)
Find the number of rectangles of the given figure?
(8) Rahul’s father wants to deposit some amount of money every year on the day of Rahul’s birthday. On his 1st birth day ₹100, on his 2nd birth day ₹300, on his 3rd birth day ₹600, on his 4th birthday ₹1000 and so on. What is the amount deposited by his father on Rahul’s 15th birthday
(9) Find the sum of integers from 1 to 100 which are divisible by 2 or 5.
(10) Find the sum of integers from 11 to 1000 which are divisible by 3.