Mental Maths Class 5 Knowing Our Numbers

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

In an examination, the seat numbers are assigned from XI to CL. How many students have enrolled for the examination ?

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A CXXIX
B ILLL
C CLX
D CXL

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Answer: D. CXL

XI = 11 and CL = 150. Counting seat numbers from 11 to 150 including both ends gives 150 - 11 + 1 = 140 students, and 140 = C + XL = CXL.

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In an examination, the seat numbers are assigned from XI to CL. How many students have enrolled for the examination ?

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