Simplification - MCQ 3

69 ÷ 3 * 0.85 = 23 * 0.85 = 19.55
19.55 + 14.5 – 3 = 31.05

So option E is correct

17.68 * 0.5 = 8.84
42.58 – 8.84 = 33.74

So option B is correct

23.56 + 4142.25 + 134.44 = 4300.25

So option D is correct

(√7744 * 66) = 5808;

5808/352 = 16.5

So option E is correct

5/9 of 504 = 280 ; 3/8 of 640 = 240 => 280 + 240 = 520

So option C is correct

(786*74) ÷ x = 1211.75
x = 48

So option D is correct

18² + √? = 350
√? = 350 – 324 = 26
? = 676

So option A is correct

140% of 500 is 700

24% of 750 is 180

700 + 180 = 880

So option D is correct

4900 ÷ 28 = 175
444 ÷ 12 = 37
175 * 37 = 6475

So option C is correct

2338/66.8 = 35

So option E is correct

62*1000*1 = 62000
? = 62

So option E is correct

1/[2 + (1/(4+(1/(5 – 1/3))))] = 1/[2+(1/(4+(3/14)))] = 1/[2+(14/59)] =1/[118+14/59] =1/(132/59)
=59/132

So option D is correct

10000 ÷ 1000 = 10
88÷0.8 = 110
10*110 = 1100

So option C is correct

0.012*0.012*0.012 = 0.000001728

2/3 + 8/9 - 21/15 

28/18 - 21/15

140-126/90

7/45 = 0.15

So option A is correct

0.4 *1124 = 449.6 = 450
450-9 = 441
441 = 21*21

So option C is correct

2ab = (a² + b²) – (a – b)²
2ab = 53-49 =4
ab =4/2 = 2

So option E is correct

391+837-113 =1115

So option B is correct

17*756÷54 = ? +540
17*14 = ? +540
238 = ? + 540
? =238-540 = -302

So option C is correct

= √(337/21 )÷ √(1365/84) × 26
= 16÷16 ×26 = 26

So option A is correct