alleryବାକ୍ସ 1 5 ବିଡି ଧରିଥାଏ | ପ୍ରତ୍ୟେକ ପରବର୍ତ୍ତୀ ବାକ୍ସ ଦୁଇଗୁଣ ଧାରଣ କରେ | ବାକ୍ସରେ ବିଡି 4?
A20
B30
C80
D40
Answer & Solution
Correct answer: D. 40
ବାକ୍ସଗୁଡ଼ିକର ଗଣନା 5, 10, 20 ଓ 40; ତେଣୁ ବାକ୍ସ 4 ରେ 40ଟି ମଣି ଅଛି।
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