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For each pair of numbers , verify that...

For each pair of numbers , verify that their product `= (HCF xx LCM)`
(i) 87, 145 (ii) 186, 403 (iii) 490, 1155

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RS AGGARWAL-FACTORS AND MULTIPLES -Exercise 2 E
  1. Find the HCF and LCM of 234, 572

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  2. Find the HCF and LCM of 693, 1078

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  3. Find the HCF and LCM of 145, 232

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  4. Find the HCF and LCM of 861," " 1353

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  5. Find the HCF and LCM of 2923, 3239

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  6. For each pair of numbers , verify that their product = (HCF xx LCM)...

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  7. The product of two numbers is 2160 and their HCF is 12 . Find their LC...

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  8. The product of two numbers is 2560 and their LCM is 320 . Find their H...

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  9. The HCF of two numbers is 145 and their LCM is 2175 . If one of the...

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  10. The HCF and LCM of two numbers are 131 and 8253 respectively . If one...

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  11. Find the least number divisible by 15, 20, 24, 32 and 36.

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  12. Find the least number which when divided by 25, 40 and 60 leaves 9 a...

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  13. Find the least number of five digits that is exactly divisible by 16,...

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  14. Find the greatest number of five digits exactly divisible by 9, 12, 1...

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  15. Three bells toll at intervals of 9, 12, 15 minutes. If they start tol...

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  16. Three boys step off together from the same place. If their steps measu...

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  17. The traffic lights at three different road crossings change after eve...

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  18. Three measuring rods are 45 cm, 50 cm and 75 cm in length. What is the...

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  19. An electronic divice makes a beep after every 15 minutes , Another de...

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  20. The circumferences of four wheels are "50 cm, 60 cm, 75 cm, and 100 cm...

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