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sem. when wilh, , , , , , , , , , , , , , , , , , , , , , , , : Each clock hj ’, ime, , Therefore, the cloege a fulibles of minutes of thei, , and 14 minutes Wl chime together after common, , Every common:, ION int i, 2/8124 <rval will be equal to LCM of 8, 12 and 1, , , , 2a LCM of 8, 12 and 14 minutes, LS =2x2«2x3x7=168 mnie, , The clocks will n 2 = 2 hours 48 minutes, B ext chime together at 5:12 am. + 2 hours 48 minutes =, , , , 1. Find the LCM by long di, , (8) 90, 120, 159, ), , (b) 126, 144, 180 (9) 192, 216, 336 (d) 225), (©) 136,170,118 (216, 372, 420 (g) 102,170,136 (hy 4, () 256, 384,512 255, 340, 425, , 2. The product of two numbers is 150. If their HCF is 3, what is their LCM?, , 3u The product of two numbers is 3375. If their HCF is 15, find their LCM,, , , , , SHCF and LCM of two numbers are 5 and 200. If one number is, er number ?, , bells ring at intervals of 10, 15 and 20 minutes. If they ring t, jen will they next ring together ?, The green light of a crossing goes on and off every 25 seconds, crossing goes on and off after every 30 seconds. If they were, 6 a.m, when will they again go on together ?, 8. Sarah makes heaps of 12, 18 or 30 with her marbles. The, each time. What is the minimum number of marbles with h, . Lisa, Lopez and Liz walk off from the same starting point.”, 36 cm and 42 cm respectively. At what minimum distance :, will they again step together ?, Three bicycle-riders circle a field in 45, 50, and 54 e, cycling together, after how much minimum time will
