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2 x 4 + 4 x 6 + 6 x 8 ..... എന്ന പരമ്പരയുടെ 20-ാം പദം എത്ര ?
A
1680
B
1640
C
1600
D
1620
Answer:
A. 1680
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Three times a number increased by 8 is as twice the number increased by 15. The number is :
Out of six consecutive natural numbers, if the sum of first three is 27, what is the sum of the other three ?
31² ന്റെ വിലയെ ഒറ്റ സംഖ്യകളുടെ തുകയായി എഴുതിയാൽ അവസാനത്തെ എണ്ണൽസംഖ്യ ഏത്?
Find the number of digits in the square root of a 4 digit number?
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