Crack the quantitative aptitude section of Placement Test or Job Interview at any company with shortcuts & tricks on HCF and LCM. Extremely helpful to crack entrance exams like MBA, Banking – IBPS, SBI, UPSC, SSC, Railways etc.

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0:00 Quantitative Aptitude
5:31 LCM Least Common Multiple
10:33 Quickly find LCM & HCF
25:37 What greatest number divides 17, 42 and 93 and leaves remainders 4, 3 and 15, respectively?
30:20 What least number when divided by 36, 24 and 16 leaves 11 as remainder in each case?
39:53 The ratio of two numbers is 5:6 and their LCM is 480, then their HCF is
44:31 What largest number will divide 47,35 and 27 leaving same remainder in each case? What will be the common remainder?
46:59 There are 3 equilateral triangles with sides 114 cm, 76 cm and 152 cm. What maximum size scale can measure them exactly?
52:39 5 clocks ring automatically at intervals of 12 minutes, 8 minutes, 3 minutes, 4 minutes and 10 minutes, respectively. In 8 hours from the moment they start, how many times will they ring
57:03 3 cyclists cycle along the circumference of a jungle. They complete one round in 27 minutes, 45 minutes and 63 minutes respectively. Since they start together, when will they meet again
58:46 Manoj wants to paste wallpaper on wall of his room. The wall is 4 meters and 50 cm in length and 3 meters and 50 cm in height. But the wall should be covered completely only by square pieces of wallpaper having same size. What is the number of maximum sized wallpaper squares needed to cover the walls