Directions – (Q.1-25) what will come in place of the question mark (?) in the following questions?1. 215.5 x 21? = 2112(a) 2.18(b) -17.5(c) 6.5(d) 5.52. 182x26÷91=?(a) 52(b) 25(c) 65(d) 393. 7100-? +41x25= 7225(a) 7226(b) 5000(c) 7000(d) 10004. (a) 4(b) 1(c) 2(d) 3(e) None of these5. 10.0001+9.9999-8.9995 =?(a) 10.9995(b) 9.0005(c) 11.0001(d) 11.0001(e) None of these6. of of 256 = ?(a) 16(b) 32(c) 64(d) 48(e) None of these7. 1470÷21÷14=?(a)...