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- (29.8% of 260) + (60.01% of 510) – 103.57 = ?
A. 450
B. 320
C. 210
D. 280
E. None of theseAnswer – D. 280
Explanation :
30% of 260 + 60% of 510 – 103 = 281≈ 280 - (21.98)² – (25.02)² + (13.03)² = ?
A. 85
B. 25
C. 75
D. 65
E. None of theseAnswer – B. 25
Explanation :
(21.98)² – (25.02)² + (13.03)² = 484 – 625 + 169 = 28 - (0.064)*(0.4)7 = (0.4)? * (0.0256)2
A. 7
B. 2
C. 8
D. 3
E. None of theseAnswer – B. 2
Explanation :
(0.4)? = (0.064)*(0.4)7 / (0.0256)2 = (0.4)2 - 572 ÷ 26 * 12 – 200 = (2)?
A. 5
B. 6
C. 8
D. 7
E. None of theseAnswer – B. 6
Explanation :
572 ÷ 26 * 12 – 200
= 22 * 12 – 200 = 264 – 200 = 64 = (2)6 - 350% of ? ÷ 50 + 248 = 591
A. 4700
B. 4900
C. 4100
D. 4600
E. None of theseAnswer – B. 4900
Explanation :
350% of ? ÷ 50 + 248 = 591
x = (343 * 100 * 50) / 350 = 4900 - 534.596 + 61.472 – 496.708 = ? + 27.271
A. 126.631
B. 62.069
C. 72.089
D. 132.788
E. None of the aboveAnswer –C. 72.089
Explanation :
= 534.596 + 61.472 – 496.708 – 27.271
= 596.068 – 523.979 = 72.089 - (√5 – 2)2 = ? – √80
A. 5
B. 6
C. 7
D. 1
E. 9Answer – E. 9
Explanation :
= 5 + 4 – 4√5 + 4√5 = 9 - (√3 – 2)2 = ? – √12 – √36
A. 13 – 2√3
B. 13 – 4√3
C. 13 – 6√3
D. 13 – 9√3
E. None of theseAnswer A. 13 – 2√3
Explanation :
(√3 – 2)2 = ? – √12 – √36
3 + 4 – 4√3 = x – 2√3 – 6
13 – 2√3 = x - (9 ÷ 2 * 27 ÷ 9)/(18 ÷ 7.5 * 5 ÷ 4)
A. 3.5
B. 2.5
C. 5.5
D. 4.5
E. None of theseAnswer – D. 4.5
Explanation :
(9 ÷ 2 * 27 ÷ 9)/(18 ÷ 7.5 * 5 ÷ 4) = 27/6 = 4.5 - 6412 ÷ 415 = 64?
A. 6
B. 8
C. 7
D. 5
E. None of theseAnswer – C. 7
Explanation :
6412 ÷ 415 = 64?
6412 – 5 = 647
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