C-05-Q135mediumsingle_mcq

In question 134, each student contributed—

aTk. $20$
bTk. $21$
cTk. $30$
dTk. $25$

ব্যাখ্যা

Each student contributes an amount equal to the number of classmates, which is $n-1=21-1=20$ . So each gave Tk. $20$ , and $21\times20=420$ confirms the total.

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Equations in One Variable — সব প্রশ্ন দেখুন (170টি) →