Tamil Nadu Board - Class 6

Core Math Concepts question bank (Mathematics)

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Q1.

Life Mathematics: What is the formula to compute Compound Interest ($CI$) in 'Numbers (Whole Numbers, Estimation)'?


(A)
$A = P\left(1 + \frac{r}{100}\right)^n$ and $CI = A - P$ (Numbers (Whole Numbers, Estimation))
(B)
Simple Interest only
(C)
Formula does not exist
(D)
None of these
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Q2.

Geometry & Mensuration: In a circle or sector, what is the area formula for 'Numbers (Whole Numbers, Estimation)'?


(A)
Area of sector $= \frac{\theta}{360^\circ} \times \pi r^2$ or $\frac{lr}{2}$ (Numbers (Whole Numbers, Estimation))
(B)
Only perimeter
(C)
Area equals diameter
(D)
None of these
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