3, 4, 9, 22.5, 67.5, 202.5, 810
C
choosing my career path
Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021
19
45 km/hr
125^15 would be 5^18
625^20 would be 5^24
25^10 would yield 5^12
so
The answer is b) i.e. 5^125
7770-7077=693
d
answer = 16.5Rs
A=3*9=27Rs
B=7*15=105Rs
132 R for 10 kg
therefore,
1kg amount = 132/10=13.2 so,
5kg mixture price = 13.2*5=66Rs
mixture will sell 25%profit then the price =66*(25/10)=33/2=16.5Rs
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10000*8:10000*12
2:3
5x=25000
x=5000
p:q
10000:15000
LCM=48
Then add remainder 3
ans =51
200 sconds
7/5 * 5/q = 7/10
35/5q = 7/10
q=10
A. 4