Explanation

Absolute value represents the distance from zero.

The distance of −2 from 0 is 2.

Last verified on 02-09-2026

Explanation

For objects moving in opposite directions, relative speed = sum of their speeds.

50 + 100 = 150 km/hour.

Last verified on 02-09-2026

Explanation

The statement “Doctors are not illiterate” means all doctors are literate.

Sana is illiterate.

Therefore, Sana cannot be a doctor.

Last verified on 02-09-2026

Explanation

Father’s current age = 72 − 6 = 66 years.

Son’s current age = 66 ÷ 6 = 11 years.

Last verified on 02-09-2026

Explanation

The HCF of 35 and 63 is 7.

Divide both terms by 7: 35 ÷ 7 : 63 ÷ 7 = 5 : 9.

Last verified on 02-09-2026

Explanation

HCF of 20 and 6 = 2.

Divide both by 2: 20 ÷ 2 : 6 ÷ 2 = 10 : 3.

Last verified 02-09-2026

Explanation

|3| = 3, |−3| = 3, and 2² = 4.

|−3²| = |−9| = 9 → 3 − 3 − 4 − 9 = −13.

Last verified on 02-09-2026

Explanation

A comes before B.

B comes before D, and C also comes before D.

Therefore, D must be the last to reach.

Last verified on 02-09-2026

Explanation

Given: Father's age = 5 times daughter's age = 5x years

Sum of ages = 48 years

So, x + 5x = 48

6x = 48

x = 48 / 6

x = 8

Daughter's current age = 8 years

Last verified on 03-08-2026

Explanation

From the given information:

1. A reaches before B → A < B

2. B reaches before D → B < D  

3. C reaches before D → C < D

Combine 1 and 2: A < B < D  

Combine with 3: C < D

So D is after both B and C. That means D cannot be last because someone is definitely behind D? Wait no — "last" means finishes after everyone.

From A < B < D, D is after A and B.  

From C < D, D is after C too.

So D finishes after A, B, and C.  

Therefore D certainly finishes last.

Last verified on 03-09-2026