1. 15 × 16 × (9/8) × (4/7) × (3/13) × (26/7) × 49 = ?
A) 6480
B) 6305
C) 6245
D) 6100
E) 6877
Answer & Explanation Option A
Solution:
6480
2. If (x + 1) / x = 2 then (x4 + 1 + 7x2) / x2[x3 +(1/x)3 ] = ?
A) 7/2
B) 9/2
C) 8/3
D) 7/4
E) None of these
Answer & Explanation Option B
Solution:
(x+1)/x = 2
=> x =1
=>(x4 + 1 + 7x2) / x2[x3 +(1/x)3 ] = 9 / 2
3. 15 % of (3/4) of (8/9) of 1199.91 = ?
A) 120
B) 144
C) 115
D) 134
E) None of these
Answer & Explanation Option A
Solution:
1199.91 ≈ 1200
= 15 % of (3/4) of (8/9) of 1200
= 120
4. 49.89 % of 1999.91 – 28.98% of 3499.99 = ?
A) -11
B) -17
C) -13
D) – 9
E) – 15
Answer & Explanation Option E
Solution:
49.89 50
1999.91 2000
28.98 29
3499.99 ≈3500
50 % of 2000 – 29% of 3500 = 1000 – 1015 = -15
5. (18.3 )2 + (27.7)2 – (13.6)2 = x + √2209
A) 881.33
B) 748.6
C) 870.22
D) 845
E) 748.24
Answer & Explanation Option C
Solution:
870.22
6. (562.5 × 6)6 ÷ (135 ÷ 9)10 ÷ (37.5 × 6) 7 = (3.75 × 4)x – 6
A) 3
B) 1
C) 8
D) 4
E) 0
Answer & Explanation Option E
Solution:
(153)6 ÷ (15)10 ÷ (152)7 = (15)x-6
=> (15)18-10-14 = (15)x-6
=> -6 = x – 6
=> x = 0
7. 8749 × 18896 – 154567023 = x + 184962
A) 21100012
B) 14578933
C) 10569119
D) 11758249
E) 13045781
Answer & Explanation Option C
Solution:
10569119
8. (2√13 + 6√13 )(11√13 + 17√13)
A) 2912
B) 3005
C) 2807
D) 2714
E) None of these
Answer & Explanation Option A
Solution:
2912
9. √7569 × 49 + 27 + 571787 ÷ 83 = ?
A) 13124
B) 14293
C) 13478
D) 11179
E) 12478
Answer & Explanation Option D
Solution:
11179
10. 15752961 ÷ 27 ÷ 63 ÷ 3 = ?
A) 2978
B) 3247
C) 3457
D) 3087
E) 2578
Answer & Explanation Option D
Solution:
3087