1. 286.04×11.646+65.37×54.08=?+137.989
A) 7000
B) 6750
C) 6800
D) 6700
E) 6680
Answer & Explanation Option C
Solution:
?+137.989=286.04×11.646+65.37×54.08
286×12 + 65×54
3432+3510 = 6942
Or, ?+138 = 6942
?=6942-138=6804 = 6800
2. 85943 – 71206 + 37517 – 3512 + 119 = ?
A) 48870
B) 43780
C) 42680
D) 46590
E) None of these.
Answer & Explanation Option A
Solution:
85940 – 71200 + 37520 – 3510 + 120 = 48870
3. 20440÷639.890=√(?)
A) 984
B) 1110
C) 900
D) 1084
E) 1200
Answer & Explanation Option D
Solution:
√(?) = 20440÷640 = 31.99 = 32 = 32×32 = 1084
4. 122.05% of 120+149.99% of 150=?
A) 371
B) 380
C) 350
D) 385
E) 360
Answer & Explanation Option A
Solution:
(122×120/100)+(150×150/100)
= (146.4+225)
= 371.4 = 371
5. (9.899)3×(2.399)2×(4.005)4=?
A) 144800
B) 140000
C) 1428200
D) 1458000
E) None of these.
Answer & Explanation Option C
Solution:
(9.9)3×(2.4)2×(4)4 =
(970.299)×(5.76)×256
(970.3)×(5.75)×256 = 1428281.6 = 1428200
6. 999.99÷25.012 = ? – 235.448
A) 265
B) 255
C) 275
D) 285
E) None of these.
Answer & Explanation Option C
Solution:
1000/ 25 = ? – 235
40 = ? – 235
? = 235+40 = 275
7. 633.72-569.21÷(11.9% of 80)=?
A) 6.667
B) 575
C) 7
D) 600
E) None of these.
Answer & Explanation Option B
Solution:
?=633.72-569.21÷(11.9% of 80) = 634-570÷(80×12)/100 = 634-570/9.6 =634 – 59.375 =575 (appx)
8. 67.99 -11.78 + 19.63 =? + 22.41
A) 56
B) 54
C) 58
D) 60
E) 52
Answer & Explanation Option B
Solution:
67.99 -11.78 + 19.63 =?+ 22.41
68 – 12+20 = ? + 22 = 88-12 -22 = 54
9. (49.999)2+(59.96)2+(64.501)2 =?
A) 16425
B) 12369
C) 10260
D) 13425
E) None of these.
Answer & Explanation Option C
Solution:
?=(500)2+(60)2+(64.5)2 = 2500+3600+4160.25 = 10260
10. √1225 + √2209 – √5329 = √?
A) 81
B) 9
C) 18
D) 729
E) None of these.
Answer & Explanation Option B
Solution:
√1225 + √2209 – √5329 = √?
35+47-73 = 9= √81