Subject
Quantitative Aptitude
Topic
LCM & HCF
Five bells ring together at first and then they ring at intervals of 3, 5, 7, 8, and 10 seconds respectively. when will they ring together again?
Five bells ring together at first and then they ring at intervals of 3, 5, 7, 8, and 10 seconds respectively. when will they ring together again?
ক)
10 minখ)
90 minগ)
14 minঘ)
240 minExplanation
৩, ৫, ৭, ৮, ও ১০ এর ল.সা.গু = ৩ × ৫ × ৭ × ৮ × ১০ = ৮৪০ ঘণ্টাগুলো পুনরায় একত্রে বাজবে= ৮৪০ সে. = ৮৪০/৬০ = ১৪ মিনিটRelated questions
If HCF(a,b) = 12, LCM(a,b) = 420, and a < b, then a + b = ?The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125 , then that number isThe HCF of three numbers is 8 and their LCM is 1680. If two of the numbers are 56 and 120, what is the third number?The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:What is the least number when divided by 4,5,6 leaves remainder 3 in each case?If a² - b² = 48 and ab = 140, then what is the HCF(a,b)?The smallest number which when diminished by 7, is divisible by 12, 16, 18, 21 and 28 isIf 2ⁿ × 3ᵐ × 5ᵖ = 1500, then n + m + p = ?