L+H = 24 and L-H = 8 So L= 16 and H =8 Product of numbers = 8*x= 8*16
ð X=16
Sum of odd places = (1+4) =5 and even places (0+5) = 5 in 1045 and hence divisible by 11.
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90% of 30000 = 27000
Now 1/3 of 27000 means 9000 on rent
½ of remining 18000 = 9000 on petrol
1/3 of remaining 9000 = 3000 on electricity So 6000 is the saving
6000/30000 * 100 = 20%
let number of 100 Rs notes are x then 100x+500(2x) = 1100x So it must be divisible by 1100 hence 8800
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P=20,000
r=8%
t=1
Interest is compounded half yearly so
r=8/2%=4%
t=1*2=2
CI=20000(1+4/100)2
CI=1632