ans: 1/6
85. is n more than m?
a. n is more than 2m-1 b. m is more than 1 86. ask what is the unit digit of n?
a. n is divided by 5, reminant is 3
b. n divided by 4, no reminant
87.some money deposit to bank, ask for the simple interest rate
a. each $70 , get $2.10 interest.
b. each $20 , get $0.66 interest
88.$20.000 deposit into bank, compand quarterly, ask for this compand interest.
a.the intrest in 2nd quarter is 1.1 times more than the first quarter.
b. the intrest in 2nd quarter is 2 dollars more than the first quarter.
89. s=0.abc. ask s is more than 2/3?
a.a+b is more than 14
b. a+c is more than 15
90. six musicians put into order, 3 of them have to be put together, ask how many ways?
91.a1=3, a2=5, a=an-a, ask s100=?
92.buy wines, first 5 bottle $8each bottle, from 6 to 10 $7each, more than 10 is $12 each. buy seperate $32 and $61, ask if buy together how much need to pay.
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