LCM of 8, 10, 20, and 30 = 120.
Required number = LCM + remainder
= 120 + 5
= 125
Last verified on 09-10-2026
1², 2², 3², 4², 5²
1, 4, 9, 16, 25
Last verified on 07-10-2026
Total students = 15 + 20 = 35
Female = 20
Fraction female = 20/35 = 4/7.
Divide the numerator by the denominator.
3 ÷ 4 = 0.75
Rule: A number is divisible by 9 if sum of its digits is divisible by 9.
326 = 3+2+6 = 11 - No
324 = 3+2+4 = 9 - Yes
325 = 3+2+5 = 10 - No
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