alleryDouble 15. What is the result?
A30
B32
C25
D17
Answer & Solution
Correct answer: A. 30
1. Doubling 15 gives 15 + 15.
2. 15 + 15 = 30.
3. 17 is the sum 2 + 15.
_Source: Wikipedia, Multiplication (CC BY-SA 4.0, rev 1378304279), History_
Keep practising Multiplication
Browse all Multiplication questions for CTET, or explore more Mathematics topics.
Related questions
In lattice multiplication, how are the two-digit products added up?To find 34 × 5, which method is easiest?Six packets hold 99 sweets each. Starting from 100 × 6, how many in all?Which pair of products adds to 8 × 17 (split 17 as 10 + 7)?Why is 7 a multiple of 7?Why can the 9 × 9 grid drop its row and column for 0?Which statement about 0 and 1 in multiplication is correct?A pupil writes 7 × 8 = 54. Which check shows the mistake?