...
Home⚖️ Law Portal🏛️ UPSC PortalMock TestsLatest JobsAdmit CardsResults
LoginRegister
Solved Question
Attempt Online
This question was previously asked in:
SSC CGL MOCK TEST PRE+MAINS TEST 3 • SSC CGL MOCK TEST PRE+MAINS TEST 3
Practice Full Paper
← View all SSC CGL 2027 Mock Tests & Papers

यदि a + b + c = 12 और a² + b² + c² = 50 है, तो ab + bc + ca का मान ज्ञात कीजिए।

1.
47
2.
45
3.
40
4.
50

Answer (Detailed Solution Below)

✓
Option 1 : 47 (Option A)
📌 Key Points & Important Facts:

The correct answer is Option 1: 47.

This question is part of the official syllabus for SSC CGL MOCK TEST PRE+MAINS TEST 3 under SSC CGL 2027. Practicing questions with authentic patterns and time limits ensures superior accuracy, speed, and confidence during actual government examinations.

Exam PaperSSC CGL MOCK TEST PRE+MAINS TEST 3
SectionSSC CGL MOCK TEST PRE+MAINS TEST 3
Total Marks200 Marks
Negative MarkingHALF Marks
Duration60 Mins
« Previous QuesNext Ques »

More SSC CGL MOCK TEST PRE+MAINS TEST 3 Questions

Q1.If secθ + tanθ = 5, then what is the value of (secθ - tanθ)?
›
Q2.If a + b + c = 12 and a² + b² + c² = 50, find the value of ab + bc + ca.
›
Q3.What is the ratio of the area of the incircle to the circumcircle of an equilateral triangle?
›
Q4.The height of a frustum of a cone is 14 cm, and the radii of its circular ends are 4 cm and 2 cm. What is its volume? (π=22/7)
›
Q5.The profit earned by selling an article for Rs 800 is 20 times the loss incurred when it is sold for Rs 275. At what price should it be sold to make a 20% profit?
›
Q6.A person spends 20% of his total income on house rent and 70% of the rest on household expenses. If he saves Rs 3600, what is his total income?
›
Q7.A sum of money amounts to Rs 4500 in 2 years and Rs 6750 in 4 years at compound interest. What is the sum?
›
Q8.Two pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both pipes are opened together, after how much time should pipe B be closed so that the tank is full in exactly
›
Q9.A train travels a distance of 360 km at a uniform speed. If the speed had been 10 km/h more, it would have taken 3 hours less for the same journey. What is the original speed of the train?
›
Q10.A man rows 24 km upstream and 28 km downstream in 6 hours. If he rows 30 km upstream and 21 km downstream in 6 hours 30 minutes, what is the speed of the boat in still water?
›

More SSC CGL 2027 Questions

Q1.If the Standard Deviation is 5, what will be the Variance?
›
Q2.What is the shape of a normal curve?
›
Q3.If the kurtosis value (β₂) of a distribution is greater than 3, what will be the curve?
›
Q4.What is the formula for the 'Standard Error of Mean'? (Where σ = standard dev, n = sample size)
›
Q5.The algebraic sum of deviations taken from the arithmetic mean is always?
›
Q6.Fisher's index number is the geometric mean of which two index numbers?
›
Q7.What is a 'Type I Error' in Hypothesis Testing?
›
Q8.Standard deviation is the positive square root of?
›
Q9.What is the limit of Karl Pearson's correlation coefficient?
›
Q10.What is the empirical relationship between Mean, Median and Mode?
›

Important Exams

UP Police Constable 2027 Mock TestBihar Civil Court Peon 2026 Mock TestUPSC CAPF 2027 Mock TestBihar Police Constable 2027 Mock TestBihar Police SI Daroga 2027 Mock TestRRB NTPC 2027 Mock TestCCRUM Group C Mock TestCCRUM Group B Mock TestCCRUM Group A Mock TestSSC GD 2027 Mock TestAgniveer Army GD 2027 Mock TestJK Police Constable 2027 Mock TestSSC CHSL 2027 Mock TestSSC CGL 2027 Mock Test

Sign Up Now & Get Free Access to All Test Series

• Full-Length Mocks • Previous Year Papers • In-depth Step-by-Step Solutions • All-India Rank

Get Free Access Now →
HomeAttemptsExamsJob AlertsPRO PASS