The cost of four dozen proof machine ribbons and five dozen
accouting machine ribbons was Rs.160/-. If one dozen
accounting machine ribbons cost Rs.20/-, what is the cost of
a dozen proof machine ribbons?
Answers were Sorted based on User's Feedback
Answer / anitha bharathan
Given:
4( dozen Proof machine)+5(dozen Accounting machine)=160
Also 1 dozen Accounting machine=20
Therefore,
4( dozen Proof machine)+5(20)=160
4( dozen Proof machine)=160-100
4( dozen Proof machine)=60
dozen Proof machine=60/40
dozen Proof machine=15
| Is This Answer Correct ? | 40 Yes | 1 No |
Answer / karthick.m
5 dozen *20 =100
so160-100=60
60 /4 = 15 per dozen
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / rbarunkumar
4x+5y=160
4x+5(20)=160
4x=160-100
x=60/4
x=15.
| Is This Answer Correct ? | 9 Yes | 0 No |
Sam and Jessica are invited to a dance. If there are 7 men and 7 women in total for the dance and one woman and one man are chosen to lead the dance. What is the probability that Sam and Jessica will NOT be chosen to lead the dance
Jack and Jill went up and down a hill. They started from the bottom and Jack met Jill again 20 miles from the top while returning. Jack completed the race 1 min a head of Jill. If the hill is 440 miles high and their speed while down journey is 1.5 times the up journey. How long it took for the Jack to complete the race ?
how can i get any online books banking exams like RS agrwal , quicker maths and other previous banking papers?
In a club there are male and female members. If 15 female quit then the number of males will become double the number of males. If 45 males quit no. of female becomes five times the number of males. Find the number of females.
19 boys turn out for hockey. Of these, 11 are wearing hockey shirts and 14 are wearing hockey pants. There are no boys without one or the other. The number of boys wearing full uniform is (A) 3 (B) 5 (C) 6 (D) 8
If a square is formed by the diagonal of the square as an edge, what is the ratio between the area?
what is the magic word in english
Cost of an item is Rs 12.60 ,profit is 10% over selling price.
in the year 1990 there are 5000 men 3000 women 2000 boys .in 1994 men are increased by 20% women are increased by ratio of boys and women
2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
A garrison of 3300 men has provisions for 32 days, when given at a rate of 850 grams per head. At the end of 7 days reinforcement arrives and it was found that now the provisions will last 8 days less, when given at the rate of 825 grams per head. How, many more men can it feed?
The GFC of an odd number and an even number is 13. The greater number is 39. What is the lesser number?