Mohenjodaro site of Harappan civilisation is situated on

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

255 × 8 + 386 × 5 =? % of 7940

√4096 + 4/5 of 780 − ? = 296

Find the simplified value of the given expression:

{16 of 13 - 7² + √441 - (3/4) X 64} ÷ (102 ÷ 17)

What should come in place of the question mark (?) in the following question?

2 – [6 – {3 + (–4 + 5 + 1) × 8} + 12] = ?

60% of 120 – ?% of 64 = 20% of 200

[(4 √ (7) + √ (7)) × (7 √ (7) + 6 √ (7))] - 87 = ?

25.6% of 250 + √? = 119

58% of 3300 - ?% of 2900 = 1740

15.8% of 9000 + 20.4% of 7500 = 30% of ?