Question

Which of the following square number is the difference between the 49th even number after 1575 and 70th even number before 1028? ​

Answer 1

Step-by-step explanation:

Given number 1575

next even number a = 1576 , d = 2

49th even no.= a +48d

1576+48×2= 1672---(1)

Let b = 1028, d = -2 , f

70th even number before 1028

= 1028 +69(-d)

= 1028 - 69 × 2

= 1028 - 138

= 890 ---(2)

Difference of 1672 and 890

= 1672 - 890

= 782

HOPE THIS HELPS.....