Question : The life span of RBC of man is:

Option 1: 120 days

Option 2: 150 days

Option 3: 180 days

Option 4: 190 days

Question : If $\left(2^2+4\right)^2 \times(3-5)+20 \%$ of $400+x \%$ of $30=30 \%$ of $30$, find the value of $x$.

Option 1: 150

Option 2: 120

Option 3: 190

Option 4: 160

Question : The ratio of time taken to complete a work by a man and a woman is 2 : 3. The man and the woman can complete the work together in 24 days. In how many days can the woman complete the work alone?

Option 1: 20 days

Option 2: 40 days

Option 3: 60 days

Option 4: 30 days

Question : 4 men and 8 women complete a job in 10 days and 5 men and 24 women complete the same work in 4 days. In how many days will 1 man and 1 woman complete the same work?

Option 1: $63 \frac{1}{3}$ days

Option 2: $69 \frac{7}{9}$ days

Option 3: $67 \frac{1}{3}$ days

Option 4: $62 \frac{2}{9}$ days

Question : One man or two women or three boys can do a piece of work in 88 days. One man, one woman, and one boy will do it in:

Option 1: 44 days

Option 2: 24 days

Option 3: 48 days

Option 4: 20 days

Question : 10 women can do a piece of work in 6 days, 6 men can do the same work in 5 days, and 8 children can do it in 10 days. What is the ratio of the efficiency of a woman, a man, and a child, respectively?

Option 1: 4 : 6 : 3

Option 2: 4 : 5 : 3

Option 3: 2 : 4 : 3

Option 4: 4 : 8 : 3