Where in India the first indigenously developed

20% of 240 + 18% of 200 = ?

(5/8 + 7/12) x 168 = ? + 93 - 25

18(1/3) + 9(2/3) – 10(1/3) = 1(2/3) + ?

8(3/4) + 5(1/6) – 4(3/4) = ?

26% of 950 + 50/3% of 7962 = ?   

What will come in the place of question mark (?) in the given expression?

(√1089 + √484) X 5 + ? = 725

Simplify: (2³×3²) ÷6

[4(1/2) + 4(1/3)] × 12 – 42 = ?²

What will come in the place of question mark (?) in the given expression?

28 × 15 + 48% of ? = 780

23% of 8040+ 42% of 545 = ?%of 3000