What is the least number which when divided by 36 and 48 leave 8 as remainder in each case?
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We will be using the concept of LCM(Least Common Multiple) to solve this. To determine the least number which when divided by 6, 15, and 18 leave the remainder 5 in each case,we need to find the LCM of the three given numbers. Since, the LCM obtained will be the smallest common multiple of all the three numbers 6, 15, and 18, after getting LCM we need to add 5 to it so as to get 5 as a remainder. Let's find the LCM of 6, 5 and 18 as shown below. Therefore, LCM of 6, 15 and 18 = 2 × 3 × 3 × 5 = 90. Thus we can see that, 90 is the least number exactly divisible by 6, 15, and 18. To get a remainder 5, we need to add 5 to the LCM. ⇒ 90 + 5 = 95. Thus, when 95 is divided by 6, 15, and 18 we get a remainder of 5 in each case. Hence, the required number for the given problem is 95. You can also use the LCM Calculator to solve this. NCERT Solutions for Class 6 Maths Chapter 3 Exercise 3.7 Question 8 Find the least number which when divided by 6, 15 and 18 leave remainder 5 in each caseSummary: The least number which when divided by 6, 15, and 18 leaving a remainder of 5 in each case will be 95. ☛ Related Questions:
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What is the least number which when divided by 36 48 and 64 it leaves a remainder of 25 37 and 53 respectively?10 Find the least number which when divided by 36, 48 and 64 leaves the remainders 25, 37 and 53, respectively. Sol. Since (36 – 25) – (48 – 37) = (64 – 53) = 11, therefore the required smallest number (LCM of 36, 48 and 64) –11 = 576 – 11 = 565.
What could be the least number which when we divide by 40 48 and 45 leaves a remainder of 4 in every case?Answer. = 720. Add remainder to the LCM.
What is the least number which on dividing 24 36 48 and 72 leaves remainder 5?Answer = 144 + 8 = 152.
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