Constable GD for CPO -CPMF (CISF, BSF, ITBP, SSB ) and Delhi Police selected after Objective Questions Exam by SSC. All the details, Study Material PDF, Book, Old question papers area available for free download.
A 725 m long train passes a tunnel 235 m long in 48 second. Find the speed of the train. Options a) 42 km/hb) 72 km/hc) 36 km/hd) 100 km/h Solutions As per solutionD = 725 + 235 mD = 960T = 48 sec.S = ?S = $ \frac D T$S = $ \frac{960}{48}$S = […]
A 725 m long train passes a tunnel 235 m long in 48 second. Find the speed of the train. Read More »
The average of 10 observations is 46. It was realized later that an observation was misread as 42 in place of 142. The correct average is: Options:a) 52b) 46c) 58d) 56 Solution As per questionSum of all No. = 46 x 10 = 460Correct sum = 460 + 142 – 42 = 560Correct average =
Select the number from among the given options that can replace the question mark (?) in the following series.17, 18, 26, 53, 117, ? Optiona) 302b) 242c) 336d) 232 Solution 17, 18, 26, 53 , 117, ? Difference of number1, 8, 27, 6413, 23, 33, 43next will be 53 = 125next Number = 117 +
17, 18, 26, 53, 117, ? Read More »
A person crosses a 1600 m long street in 4 min. What is his speed (in km/h)? Options:a) 22b) 14c) 20d) 24 Solution: Distance = speed x time as per questions distance = 1600m =1.6kmTime = 4 min.=4/60 hr.Speed =? speed =$ \frac {d}{t} =\dfrac{1.6}{\frac{4}{60}}$speed =$ \frac{1.6\times60}{4}$speed =24 km/h Ans: 24 km/h
A person crosses a 1600 m long street in 4 min. What is his speed (in km/h)? Read More »
Identify the number that does not belong to the following series.16, 17, 25, 52, 116, 243 Optiona) 116b) 52c) 243d) 25 Solution 16, 17, 25, 52, 116, 243Difference : 1, 8, 27, 64, 127series is : 13, 23, 33, 43Next in difference series is 53 = 125Next number of series = 116 + 125 =
A chair is sold for Rs 720 after giving a discount of 10% on its marked price. The cost price of the chair is Rs 640. If it is sold at the marked price, then the profit percentage will be: Optionsa) 30%b) 20%c) 18%d) 25% Solutions As per questionsMP x .9 = SP MP x .9 = 720 Rs.MP =
The salaries of Ravi and Sumit are in the ratio 4 : 5, If the salary of each is increased by Rs 6,000 the new ratio becomes 35 : 40, What will be Sumit’s increased salary? Options a) Rs. 26,000b) Rs. 36,000c) Rs. 16,000d) Rs. 160,000 Solutions As per questionThe salaries of Ravi and Sumit
Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amounts received are equal. What is the second part (in Rs) invested? Optionsa) 1100b) 1500c) 1320d) 1440 Solution As per questionLet First Part is a and
Select the letter – cluster from among the given option that can replace the question mark (?) in the following series.UKT, PFO, KAJ, ? Optiona) FEQb) GHMc) FVEd) EVO Solution U K T : 21 – 11 – 20P F O : 16 – 6 – 15K A J : 11 – 1 – 10Pattern
Find the value of 45−3×(4 of 6+12÷3×6−4×5)+6 Optionsa) -45b) -145c) -33d) -30 Solutions As per questions = $ \ 45 – 3\times ( 4\times 6 + 12\div 3\time 6 – 4\times 5) + 6$= $ \ 45-3 \times ( 24 + 24 – 20) + 6$= $ \ 45 – 3 \times ( 48 -20 )+
Find the value of 45−3×(4 of 6+12÷3×6−4×5)+6 Read More »