The average price of 20 paint brush is $15 while average prices of 18 of those is $12 . for the remaining 2 brushes the prices of 1 is 40% more than that of other
ques 1 .The average price of 20 paint brush is $15 while average prices of 18 of those is $12 . for the remaining 2 brushes the prices of 1 is 40% more than that of other?
answer: brush is $35 and other is $49.
ques 2 .the length and breadth of a rectangular field are 45 m and 30m respectively. find the ratio of the breadth to the length of the field?
answer: breadth /length=30/45=2/3=2:3.
ques 3 .A certain distance is covered at a certain speed .if half the distance is covered in double the time,the ratio of the two speeds is?
answer: 4:1.
ques 4 .Aman sells 5 articles for rs 15 and makes a profit of 20% .find his gain or loss percent if he sells 8 such articles for Rs 18.40?
answer: 8% loss.
ques 5. In what ratio should a 20 % methyl alcohol solution be mixed with 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?
answer: 1:2 .
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