Correct Answer - Option 4 : 3
Calculation:
Number divisible by 5, 6 and 7 should be divisible by their LCM
⇒ LCM of 5, 6 and 7 is 210
Number of multiplies of 210 in 250 to 1000
⇒ 210 × 2 = 420, 210 × 3 = 630, 210 × 4 = 840
∴ Numbers from 250 to 1000 are exactly divisible by 5, 6 and 7 is 3
