What is the place of 8 in 63.408 ​

Three circles of radius 63 cm each are placed in such a way that each circle touches the other two. What is the area of the portion enclosed by the three circles ? (in sq. cm)

What approximately will come in the place of the question mark '?' in the following question? 0.02 xx 8.39 + 6.3 xx 7.875=?

What will come in the place of the question mark ‘?’ in the following question? [(20//7) × 63] div (18) + (20//3) = ?

What will come in the place of question mark (?) in following questions? 2.1 xx 0.02 xx 6.3 = ?

Write the place value of 6 in the following decimal numbers. 28.63

- What is the 7th rank of sequence 0, 3, 8, 15, 24, ...?(a) 63(b) 48 (c) 35

ln the following questions in the place of question mark which sign would be prefered. [1521 div39 + 61] ? [408 - 195 - 102]

What is to be added to 63.58 to get 92?

What is the value of ((6.3)^(3)+(1.1)^(3))/((6.3)^(2)-6.3xx1.1+(1.1)^(2))