1. (75*4%)*900/(15*6)
a) 30
b) 38
c) 180
d) 45
Answer: 30
Explanation: (75*4%)*900/(15*6) =(75*4/100)*900/90 =3*10 =30
2. 1+2+3+......+25=?
a) 365
b) 400
c) 325
d) 100
Answer: 325
Explanation: 1+2+3+....+n=n(n+1)/2 1+2+3+...+25=(25*(25+1))/2 =25*26/2 =25*13=325
3. A*25%=B*50%, then A:B=?
a) 5:6
b) 1:2
c) 2:1
d) 5:4
Answer: 2:1
Explanation: A*25%=B*50% A*25/100=B*50/100 A=2B A:B=2:1
4. (15+25)*(28/16)-(35/7)*14=?
a) 70
c) 40
d) 35
Answer: 0
Explanation: (15+25)*(28/16)-(35/7)*14 =40*(7/4)-5*14 =70-70 =0
5. 3A=2B=5C, A:B:C=?
a) 10:15:6
b) 3:2:5
c) 6:15:10
d) 8:6:5
Answer: 10:15:6
Explanation: 3A=2B=5C LCM OF (3,2,5) IS 30 (3A=2B=5C)/30 3A/30=2B/30=5C/30 A/10=B/15=C/6 A:B:C=10:15:6
6. (0.00025*0.0368)/(0.025*0.00368)
a) 35
b) 10
c) 25
d) 368
Answer: 10
Explanation: (0.00025*0.0368)/(0.025*0.00368) =(25*368*10^9)/(25*368*10^8) =10
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7. (√1024*2)/8+144/(4*3)-(100/5)=?
a) 20
b) 12
c) 8
Answer: 0
Explanation: (√1024*2)/8+144/(4*3)-(100/5) =(32*2)/8+144/12-20 =64/8+12-20 =8-8 =0
8. √225+√729+√961=?
a) 73
b) 56
c) 79
d) 15
Answer: 73
Explanation: √225+√729+√961 =15+27+31 =73
9. A*33.33%=B*14.28%, A:B=?
a) 33:14
b) 7:3
c) 3:7
d) 1:1
Answer: 3:7
Explanation: A*33.33%=B*14.28% 33.33%=1/3, 14.28%=1/7 A/3=B/7 A:B=3:7
10. [{(5*3)+5}÷4]×√25=?
a) 15
b) 20
c) 25
d) 30
Answer: 25
Explanation: [{(5*3)+5}÷4]×√25 =[{15+5}÷4]×√25 =[20÷4]×5 =5×5 =25
