Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 311-320 of 600 questions.
What is the value of (x) from (7x-5y=4) and (2x+5y=41)?
B. (x=5)
दोनों समीकरण जोड़ने पर (9x=45) मिलता है। इसलिए (x=5)। / Adding both equations gives (9x=45). Therefore (x=5).
Login to save your score, XP, coins and progress.
On solving (4x+3y=50) and (2x-5y=-6), what is the value of (y)?
D. \(y=\frac{62}{13}\)
दूसरे समीकरण से \(x=\frac{5y-6}{2}\) रखें। पहले में रखने पर (13y=62), इसलिए \(y=\frac{62}{13}\)। / Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).
Login to save your score, XP, coins and progress.
If \(\frac{x+y}{2}=9\) and \(\frac{x-y}{3}=2\), what are the values of (x) and (y)?
A. (x=12,\ y=6)
दिए समीकरण (x+y=18) और (x-y=6) बनते हैं। जोड़ने पर (x=12) और फिर (y=6)। / The given equations become (x+y=18) and (x-y=6). Adding gives (x=12), then (y=6).
Login to save your score, XP, coins and progress.
C. (25) रुपये(25) rupees
विलोपन से (p=45) मिलता है। फिर (3(45)+2q=185), इसलिए (q=25)। / Elimination gives (p=45). Then (3(45)+2q=185), so (q=25).
Login to save your score, XP, coins and progress.
If (x=7,\ y=4) is a solution of (2x+my=34), what will be the value of (m)?
B. (m=5)
(x=7,\ y=4) को समीकरण में रखें। (14+4m=34), इसलिए (m=5)। / Substitute (x=7,\ y=4) in the equation. (14+4m=34), so (m=5).
Login to save your score, XP, coins and progress.
For (6x+9y=18) and (2x+3y=c) to have no solution, which value of (c) is correct?
D. (c=8)
पहला समीकरण (2x+3y=6) बनता है। (c=8) होने पर समान बायां पक्ष और अलग दायां पक्ष मिलेगा, इसलिए कोई हल नहीं। / The first equation becomes (2x+3y=6). When (c=8), the left side is the same but the right side is different, so there is no solution.
Login to save your score, XP, coins and progress.
What is the value of (x) from \(\frac{x}{3}+\frac{y}{5}=4\) and (x-y=6)?
A. \(x=\frac{39}{4}\)
पहले समीकरण को (15) से गुणा कर (5x+3y=60) बनाएं। (x=y+6) रखने पर \(x=\frac{39}{4}\)। / Multiply the first equation by (15) to get (5x+3y=60). Using (x=y+6) gives \(x=\frac{39}{4}\).
Login to save your score, XP, coins and progress.
On solving (0.5x-0.2y=1.9) and (0.3x+0.4y=2.6), what is (y)?
C. \(y=\frac{73}{26}\)
दशमलव हटाने पर (5x-2y=19) और (3x+4y=26) मिलते हैं। विलोपन से \(y=\frac{73}{26}\)। / Removing decimals gives (5x-2y=19) and (3x+4y=26). Elimination gives \(y=\frac{73}{26}\).
Login to save your score, XP, coins and progress.
If (3(x+y)+2(x-y)=31) and (2(x+y)-(x-y)=13), what is the value of (x)?
B. \(x=\frac{40}{7}\)
(x+y=s) और (x-y=d) मानें। हल करने पर \(s=\frac{57}{7}\) और \(d=\frac{23}{7}\), इसलिए \(x=\frac{40}{7}\)। / Let (x+y=s) and (x-y=d). Solving gives \(s=\frac{57}{7}\) and \(d=\frac{23}{7}\), so \(x=\frac{40}{7}\).
Login to save your score, XP, coins and progress.
If (2x+3y=92) and (3x+2y=98), which is the larger number?
D. (22)
दोनों समीकरणों को जोड़ने पर (x+y=38) और घटाने पर (x-y=6) मिलता है। इसलिए (x=22,\ y=16)। / Adding the two equations gives (x+y=38) and subtracting gives (x-y=6). Therefore (x=22,\ y=16).
Login to save your score, XP, coins and progress.
Use Google login or mobile OTP. Admin can block users and control login providers.