Mental Maths Class 5 Integers

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

Find the smallest number which leaves a remainder of 1 when divided by 2, 3, 4 and 5.

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A 59
B 60
C 61
D 119

Show answer and explanation

Answer: C. 61

A number leaving remainder 1 on division by 2, 3, 4 and 5 is 1 more than a common multiple of them. LCM(2, 3, 4, 5) = 60, so the smallest such number is 60 + 1 = 61.

Answering after opening this box earns no Practice Points.

Rules for asking and answering

Find the smallest number which leaves a remainder of 1 when divided by 2, 3, 4 and 5.

More questions like this