- A49
- B45
- C21
- D41
Step-by-Step Solution
The number is 1 more than a multiple of 20 (LCM of 4 and 5): 21, 41, 61, … Between 30 and 50 the only choice is 41.
Answer: D) 41
Students lining up for assembly in rows of 4 leave 1 student over, and in rows of 5 also leave 1 student over. There are between 30 and 50 students. How many are there?
Class 8Parity, Remainders and Digital RootsNumber System
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Parity, Remainders and Digital Roots practice questions
More Class 8 Parity, Remainders and Digital Roots practice
Find the digital root of the product 4567 × 89 without multiplying.A number leaves a remainder of 23 when divided by 35. What remainder does it leave when…Two odd numbers are added. The sum is always:Find the digital root of 384 (keep adding the digits until one digit is left).What is the sum of the three odd numbers 11, 25 and 37: odd or even, and why?