time and work Model Questions & Answers, Practice Test for ssc mts tier 1 2024
ssc mts tier 1 2024 SYLLABUS WISE SUBJECTS MCQs
Number System
Lcm & Hcf
Power, Indices And Surds
Ratio & Proportion
Percentage
Time & Work
Time & Distance
Mensuration
If the ratio of the work done by (x + 2) workers in (x – 3) days to the work done by (x + 4) workers in (x - 2) days is 3 : 4, then what is the value of x ?
Answer: (c)
${(x + 2)(x - 3)}/{(x + 4)(x - 2)} = {x^2 - x - 6}/{x^2 + 2x - 8} = 3/4$
⇒$4x^2 – 4x –24 = 3x^2$ + 6x – 24
⇒$x^2$ – 10x = 0⇒x = 0, 10
A person can do a job as fast as his two sons working together. If one son does the job in 6 days and the other in 12 days, how many days does it take the father to do the job?
Answer: (a)
One day's work of first son = $1/6$
One day's work of second son = $1/{12}$
∴ One day's work of them working together
= $1/6 + 1/{12} = {2 + 1}/{12} = 1/4$
father will finish the work in 4 days.
A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of water current respectively ?
Answer: (b)
Let the man's upstream speed be $S_u$ kmph and downstream speed be $S_d$ kmph.
Then, Distance covered upstream in 8 hrs 48 min.
d = Distance covered downstream in 4 hrs.
⇒$(S_u × 8 4/5) = (S_d × 4)⇒{44}/5 S_u = 4S_d⇒S_d = {11}/5 S_u$
∴ Required ratio
= $({S_d + S_u}/2) : ({S_d - S_u}/2) = ({16S_u}/5 × 1/2) : ({6S_u}/5 × 1/2) = {8/5} : {3/5}$
= 8 : 3.
A garrison of 500 men had provisions for 27 days. After 3 days a reinforcement of 300 men arrived. For how many more days will the remaining food last now?
Answer: (c)
Let the remaining food will last for x days.
500 men had provision for (27 – 3) = 24 days.
(500 + 300) men had provisions for x days.
More men, Less days (Indirect Proportion)
∴ 800 : 500 :: 24 : x = (800 × x) = (500 × 24)
⇔x=$({500 × 24}/{800})$ = 15
45 people take 18 days to dig a pond. If the pond would have to be dug in 15 days, then the number of people to be employed will be
Answer: (c)
$M_1 = 45, D_1 = 18$
Here, $M_2 = x, D_2 = 15$
By the formula, $M_1D_1 = M_2D_2$
∴ $M_2 = {M_1D_1}/{D_2}$
⇒x = ${45 × 18}/{15}$ = 3 × 18 = 54
ssc mts tier 1 2024 IMPORTANT QUESTION AND ANSWERS
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Time And Work Aptitude Questions For SSC MTS 2024 Paper 1 »
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Percentage Aptitude Question PDF For SSC MTS 2024 Paper 1 »
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Ratio and Proportion Questions Answers Test: SSC MTS 2024 »
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150+ Mensuration Aptitude Questions Test For SSC MTS 2024 »
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New Time And Distance Aptitude Questions For SSC MTS 2024 »
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Power, Indices & Surds Questions For SSC MTS 2024 Paper 1 »
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Number System Aptitude Questions For SSC MTS 2024 Paper 1 »
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LCM & HCF Aptitude Question Test For SSC MTS 2024 Paper 1 »
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