A group of students decided to collect as many paise from each member of group as is the number of membe Tk. If the total collection amounts to Tk. 29, the number of the member is the group is:

A 57

B 67

C 77

D 87

Correct Answer: Option C

x = (√3 + 1)/( √3-1) x (√3 + 1)/ (√3+1)

=> x = ((√3 + 1)2)/(3-1)

=>x = (3 + 1 + 2√3)/2 = 2 + √3.

Money collected = (59.29 x 100) paise = 5929 paise.

So, Number of membeTk = √5929 = 77.

9. The square root of (7 + 3√5) (7 - 3√5) is

√5///@@2///4///3√5

√((7 + 3√5)(7 - 3√5))

=√((7)2 - (3√5)2)

=√(49 – 45)= √4 = 2.