allery12 പേനകൾക്ക് നിശ്ചിത നിരക്കിൽ 90 വിലയുണ്ടെങ്കിൽ, 20 പേനകൾക്ക്
ARs 120
BRs 135
CRs 160
DRs 150
Answer & Solution
Correct answer: D. Rs 150
ഒരു പേനയുടെ വില 7.50 രൂപയാണ്, അതിനാൽ 20 പേനകളുടെ വില 150 ആണ്.
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