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 31-40 of 600 questions.
If (J(x)=25-2x), what is (J(4))?
A. (17)
(J(4)=25-2(4)=17) है। पहले गुणा करें फिर घटाएं। / (J(4)=25-2(4)=17). Multiply first and then subtract.
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If a plant grows by (2) cm each day and starts at (10) cm, which rule represents it?
C. (h(d)=10+2d)
आरंभिक मान (10) है और वृद्धि दर (2) है। इसलिए नियम (h(d)=10+2d) होगा। / The initial value is (10), and the growth rate is (2). So the rule is (h(d)=10+2d).
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If a box has (40) candies and (5) decrease each day, which rule represents it?
B. (c(d)=40-5d)
आरंभिक मात्रा (40) है और कमी (5) प्रति दिन है। इसलिए नियम (c(d)=40-5d) है। / The initial amount is (40), and the decrease is (5) per day. So the rule is (c(d)=40-5d).
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If (E(t)=11+3t), what is the difference between (E(2)) and (E(3))?
B. (3)
लगातार दो मानों का अंतर वृद्धि दर के बराबर होता है। यहां दर (3) है। / The difference between consecutive values equals the growth rate. Here the rate is (3).
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If (Z(t)=100-9t), what is the decrease from (Z(1)) to (Z(2))?
A. (9)
लगातार दो चरणों में कमी दर के परिमाण के बराबर होती है। यहां कमी (9) है। / The decrease between two consecutive steps equals the magnitude of the rate. Here the decrease is (9).
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In linear growth (y=a+bx), which statement is true about (b)?
A. (b) धनात्मक होता है(b) is positive
वृद्धि में मान बढ़ता है इसलिए दर धनात्मक होती है। (b) दर को दिखाता है। / In growth, the value increases, so the rate is positive. (b) represents the rate.
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In linear decay (y=a-bx), when (b>0), what happens to (y) as (x) increases?
B. (y) घटता है(y) decreases
(a-bx) में (x) बढ़ने पर घटाया गया भाग बढ़ता है। इसलिए (y) घटता है। / In (a-bx), the subtracted part increases as (x) increases. Therefore (y) decreases.
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If (Y(t)=2t+1), what is the total increase from (t=0) to (t=3)?
C. (6)
दर (2) है और (3) चरण हैं। कुल वृद्धि \(2\times3=6\) है। / The rate is (2), and there are (3) steps. The total increase is \(2\times3=6\).
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If (U(t)=50-4t), what is the total decrease from (t=0) to (t=5)?
C. (20)
कमी दर (4) है और (5) चरण हैं। कुल कमी \(4\times5=20\) है। / The decrease rate is (4), and there are (5) steps. The total decrease is \(4\times5=20\).
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Which statement is correct for (y=14+6x)?
B. यह रेखीय वृद्धि हैIt is linear growth
(x) का गुणांक (6) धनात्मक है। इसलिए यह रेखीय वृद्धि है। / The coefficient of (x) is (6), which is positive. Therefore it is linear growth.
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