The length, breadth and height of a room in the shape of a cuboid are increased by 20%, 25% and 30% respectively. Find the percentage change in the volume of the cuboid. घनाभ के आकार के एक कमरे की लंबाई, चौड़ाई और ऊंचाई में क्रमशः 20%, 25% और 30% की वृद्धि की जाती है। घनाभ […]
A train traveling at 136 km/h completely crosses another train having half its length and traveling in the opposite direction at 44 km/h in 6 s. If it also passes a railway platform in 45 s, then find the length of the platform. (In m) 136 km/h की गति से चलने वाली एक ट्रेन, इससे
If N5921 is divisible by 11, find the value of the smallest natural number N. यदि N5921, 11 से विभाज्य है, तो सबसे छोटी प्राकृतिक संख्या N का मान ज्ञात कीजिए। a) 6b) 9c) 7d) 8 Answer : d) 8 Uttar Pradesh Police SI Exam paper – Mathematics Solution : Divisibility rule for 11. This
If N5921 is divisible by 11, find the value of the smallest natural number N. Read More »
If the average marks of three classes of 55, 60 and 65 students are 55,60, 65 respectively, find the average marks of all the students. (In approximately) यदि 55, 60 और 65 छात्रों वाली तीन कक्षाओं के औसत अंक क्रमशः 55,60, 65 हैं, तो सभी छात्रों के औसत अंक ज्ञात कीजिए। (लगभग) a) 62.277b) 66.277c)
A person cycles from hostel to college at a speed of 20 kmph and reaches 13.5 minutes late. If he cycles at a speed of 24 kmph and reaches early by 13.5 minutes, find the distance between hostel and college. (In km) एक व्यक्ति हॉस्टल से कॉलेज तक 20 किमी प्रति घंटे की गति से
A number divided by 11 leaves a remainder 3. What is the remainder when the square of the same number is divided by 11? a) 7b) 5c) 9d) 11 Ans : c) 9 UP Police SI Exam Paper – Mathematics Solution : Let the number be N. We are given that when N is divided
The ratio between the number of males and females in a college is 21:22. If the number of males are increased by 20% and the number of female increased by 30%. What is new ratio of males and females in the college? a) 127:143b) 125:143c) 128:143d) 126:143 Ans : d) 126:143 UP Police SI Exam
Find the sum of the G.P.: 2/5, 2/25, 2/125, 2/625, … to the n terms. a) 5/4(1-(1/5n))b) 2/5(1-(1/5n))c) 1/2(1-(1/5n))d) 4/5(1-(1/5n)) Answer : c) 1/2(1-(1/5n)) UP Police SI Paper – Numerical Mental Ability Solution : To find the sum of the given geometric progression (G.P.), we need to identify the first term and the common ratio.The
Find the sum of the G.P.: 2/5, 2/25, 2/125, 2/625, … to the n terms. Read More »
Two trains are moving in the same direction at the speed of 34 Km/hr and 86 Km/hr, there lengths are 300 meters and 480 meters respectively. What will be the time taken by faster train to cross the slower train? a) 36 secondb) 54 second c) 60 secondsd) 48 seconds Ans : b) 54 second
Weight of A1 is six times of A2 and A2’s weight is 50 percent more than that of A3. If the average weight of all three is 299 kgs, then what is the weight of A1? a) 1544 kgb) 979 kgc) 897 kgd) 702 kg Ans : d) 702 kg SSC Constable GD Paper :