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Time Interval

Class 10 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsFour devices give signals at intervals of (28), (36), (63), and (84) seconds respectively. They signal together now. After how many seconds will they signal together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 12Expert MathematicsFour automatic signals ring at intervals of (18), (27), (45), and (60) seconds respectively. They ring together now. After how many seconds will they ring together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 11Expert MathematicsThree bells ring at intervals of (45), (60), and (84) seconds respectively. If they ring together now, after how many seconds will they ring together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 10Expert MathematicsThree machines give signals at intervals of (16), (24), and (40) minutes respectively. If they signal together now, after how many minutes will they signal together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 13Hard MathematicsFour signal lights flash at intervals of (12), (18), (27), and (36) seconds. They flash together now. After how many seconds will they flash together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 12Hard MathematicsThree bells ring at intervals of (20), (28), and (35) seconds. They ring together now. After how many seconds will they ring together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 11Hard MathematicsThree bells ring at intervals of (18), (24), and (30) seconds respectively. If they ring together now, after how many seconds will they ring together again?Class 10Real NumbersHCF and LCM using prime factorisationLevel 10Hard