- Person 1 is thrice as good a workman as person 2 and so takes 30 days less than person 2 for doing a job. Calculate the time in which they can do the job together is.
11 1/4121112 1/220Option A

Let person 1 can finish the whole work in x days.

Person 2 can finish the same work in 3x days.

then 3x-x= 2x= 30

x= 15 days

Person 1 can finish the work in 15 days.

Person 2 can finish in 45 days.

A+B work = 1/15 + 1/45 = 4/45

A+B can finish the work in 45/4 = 11 ¼ days - 32 men and 24 women together can complete a work in 16 days. 40 men can complete the same work in 32 days.How many days will 32 women can complete the same work ?
1012152018Option D

(32 M + 24 W)* 16= 40 M * 32

= 40M * 16 * 2

32M + 24W = 80M

24W =48M

1W=2M——-1

32W=64M—–2

Now 40 men complete the work in 32 days.

So 64 men complete the same work in 32* 40 / 64 = 20 days.

Hence 32 women complete the same work in 20 days. - Four examiners can examine a certain number of answer papers in 10 days by working for 5 a day. for how many hours in a day would 2 examiners have to work in order to examine twice the number of answer papers in 20 days?
1015202512Option A

M1 * D1* H1 / W1 = M2 * D2* H2 / W2

M1 = 4 D1= 10 H1= 5

W1 = 1 M2 =2 D2 = 20

H2 = ? W2= 2

4*10 *5/1 = 2* 20 *H2/2

=>H2= 10h - 2 boys and 3 girls together or 4 boys can complete a piece of work in 20 days. 3 boys and 3 girls will complete the same work in how many days?

1516171819Option B

2 boys + 3 girls= 4 boys

=>2 boys = 3 girls

=>3 boys + 3 girls = 5 boys ( 3 girls= 2 boys)

M1D1= M2D2

=>4* 20 = 5 *D2

D2 = 16 days. - Varun gets Rs. 700 for every day that the works. If he runs Rs.19600 in a month of 62 days, for how many days did he work?

2120232825Option D

Varun gets Rs.700 for 1 day of work

Amount received by varun for 62 days.

Number of days Varun worked in a month = 19600/ 700 =28 days. - Person A and Person B can complete a piece of work in 30days and 20 days respectively. Then contracted to complete the work for Rs. 60,000.The share of Person A in the contracted money will be

24,00025,00020,00019,00026,000Option A

Total amount = Rs.60,000

Person A’s 1 day work = 1/30

Person B’s 1 day work =1/20

Ratio = 1/30 : 1/20 = 2:3

Sum of the ratio = 2+3 = 5

Person A’ s share = 2/5 * 60,000 = Rs.24,000 - There are n number of workers can finish a project work in 15 days. If there are 3 workers could be finished in 5 days less. the original number of workers are:

35746Option E

M1M2=M2D2

n*15 = ( n+3) * 10

n=6 - 84 women can do a piece of work in 36 days. How many women are required to complete the same work in 42 days?

7236784467Option A

84 women – 36 days

1 women–84 * 36 days

Number of women required = 84 * 36/42 = 72 women - Person A earns Rs. 250 in 16 days and person B earns Rs.280 in 20 days. what is the ratio of their earnings?

25:11212:112120:112125:112125:110Option D

Required ratio = 250/16 : 280/ 20

=5000:4480

=125:112 - Hasini and her daughter received Rs. 800 as wages for 5 days work. Hasini’s work was three times more efficiency han her daughter. Then what is the daily wage of her daughter?

3540455565Option B

Hasini: daughter = 3:1

daughter share = ¼ * 800 = Rs.200

So daily wage = 200/ 5 = Rs.40