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If 169 =b^(2)+25 then find the value of ...

If 169 =`b^(2)+25` then find the value of b .The following sentences are the steps involved in solving the above problem .Arrange them in sequential order from the first to the last

A

BAC

B

BCA

C

CAB

D

ACB

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The correct Answer is:
a
bac is the sequential order from first to last
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If the average mark of 15 students is 60 and the average mark of another 10 students is 70, then find the average mark of 25 students. The following are the steps involved in solving the above problem. Arrange them in sequential order. (A) Average marks of 25 students = (1600)/(25) = 64 (B) The total marks of 15 students = 15 xx 60 = 900 The total marks of 10 students = 10 xx 70 = 700 (C) The total marks of 25 students = 900 + 700 = 1600

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PEARSON IIT JEE FOUNDATION-SQUARES AND SQUARE ROOTS AND CUBES AND CUBE ROOTS -Level1
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