Explanation

LCM of 8, 10, 20, and 30 = 120.

Required number = LCM + remainder

= 120 + 5

= 125

Last verified on 09-10-2026

Explanation

1², 2², 3², 4², 5²

1, 4, 9, 16, 25

Last verified on 07-10-2026

Explanation

Total students = 15 + 20 = 35

Female = 20

Fraction female = 20/35 = 4/7.

Last verified on 07-10-2026

Explanation

Divide the numerator by the denominator. 

3 ÷ 4 = 0.75

Last verified on 07-10-2026

Explanation

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

Last verified on 07-10-2026

Explanation

4 × 5 × q = 5 × p × 2

20q = 10p

p/q = 20/10 = 2

Last verified on 06-10-2026

Explanation

LCM of 18 and 24

18 = 2 × 3²

24 = 2³ × 3

LCM = 2³ × 3² = 8 × 9 = 72

Last verified on 06-10-2026

Explanation

845 ÷ 7

7 × 120 = 840

845 - 840 = 5

Remainder = 5

Last verified on 06-10-2026

Explanation

3/4 + 1/8

= 6/8 + 1/8

= 7/8

Last verified on 06-10-2026

Explanation

• An octagon has 8 sides. ⬡
• Interior Angle Sum: 1,080°
• Regular Octagon: All 8 sides and angles are equal.
• Each Interior Angle: 135°
• Example: Stop sign