Q161
Open questionThe ratio of two numbers is 3 : 4 and their LCM is 120. The sum of numbers is = ?
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Aptitude · all questionsProblems On H.C.F And L.C.M
Problems On H.C.F And L.C.M
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Q162
Open questionThe greatest 4 digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28 = ?
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Q163
Open questionThe traffic lights at three different signal points change after every 45 seconds, 75 seconds and 90 seconds respectively. If all change simultaneously at 7:20:15 hours, then they will change again simultaneously at = ?
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Q164
Open questionLCM of two prime numbers x and y (x > y) is 161. Then the value of 3y - x is = ?
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Q165
Open questionThe LCM of two prime numbers x and y (x > y) is 161. The value of (3y - x):
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Q166
Open questionThe sides of a triangular field are 62 m, 186 m and 279 m. Find the greatest length of tape that would be able to exactly measure each of them without any fractions.
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Q167
Open questionWhat is the HCF of the polynomials (x4 - 1), (x3 - 3x2 + 3x - 1) and (x3 - 2x2 + x)?
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Q168
Open questionThe least perfect square, which is divisible by each of 21, 36 and 66 is:
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Q169
Open questionA and B run a 12 km race on a circular track of length 1200 m. They complete one round in 300 seconds and 400 seconds, respectively. After how much time from start will the faster person meet the slower person for the last time?
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Q170
Open questionThe sum of two positive numbers is 240 and their HCF is 15. Find the number of pairs of numbers satisfying the given condition.
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Q171
Open questionThe HCF of two numbers is 29, and the other factors of their LCM are 15 and 13. The larger of the two numbers is:
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Q172
Open questionThree numbers are in the proportion of 3 : 8 : 15 and their LCM is 8280. What is their HCF?
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Q173
Open questionA and B are two prime numbers such that A > B and their LCM is 209. The value of A2 - B is:
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Q174
Open questionFind the LCM of 186.6 and 373.2.
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Q175
Open question13, a, b, c are four distinct numbers and the HCF of each pair of numbers (13, a) ; (13, b) ; (13, c) is 13, where a, b, c are each less than 60 and a < b < c. What is the value of
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Q176
Open questionThree numbers are in the ratio. If the difference between the greatest number and the smallest number is 33, the HCF of the three numbers is:
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Q177
Open questionCalculate the HCF of and
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Q178
Open questionWhat is the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad ?
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Q179
Open questionFind the smallest 5-digit number which when divided by 15, 20 and 25 leaves remainders 7, 12 and 17, respectively.
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Q180
Open questionThe least multiple of 13, which on dividing by 4, 5, 6, 7 and 8 leaves remainder 2 in each case is
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