एक त्योहार सजावट में पहले द्वार पर (90) लाइटें हैं और हर अगले द्वार पर (25) लाइटें अधिक हैं। (10) द्वारों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (90) lights and each next gate has (25) more lights. How many lights are there on (10) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(90,115,140,\ldots\) and \(S_{10}=2025\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is A. (2025). The light numbers are \(90,115,140,\ldots\) and \(S_{10}=2025\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(90,115,140,\ldots\) है और \(S_{10}=2025\)। परीक्षा में प्रत्येक द्वार को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (80) लाइटें हैं और हर अगले गेट पर (20) लाइटें अधिक हैं। (9) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (80) lights and each next gate has (20) more lights. How many lights are there on (9) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(80,100,120,\ldots\) and \(S_9=1440\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is C. (1440). The light numbers are \(80,100,120,\ldots\) and \(S_9=1440\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(80,100,120,\ldots\) है और \(S_9=1440\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (60) लाइटें हैं और हर अगले गेट पर (15) लाइटें अधिक हैं। (8) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (60) lights and each next gate has (15) more lights. How many lights are there on (8) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(60,75,90,\ldots\) and \(S_8=900\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is A. (900). The light numbers are \(60,75,90,\ldots\) and \(S_8=900\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(60,75,90,\ldots\) है और \(S_8=900\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (48) लाइटें हैं और हर अगले गेट पर (12) लाइटें अधिक हैं। (9) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (48) lights and each next gate has (12) more lights. How many lights are there on (9) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(48,60,72,\ldots\) and \(S_9=864\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is C. (864). The light numbers are \(48,60,72,\ldots\) and \(S_9=864\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(48,60,72,\ldots\) है और \(S_9=864\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (36) लाइटें हैं और हर अगले गेट पर (6) लाइटें अधिक हैं। (10) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (36) lights and each next gate has (6) more lights. How many lights are there on (10) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(36,42,48,\ldots\) and \(S_{10}=630\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is B. (630). The light numbers are \(36,42,48,\ldots\) and \(S_{10}=630\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(36,42,48,\ldots\) है और \(S_{10}=630\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (28) लाइटें हैं और हर अगले गेट पर (7) लाइटें अधिक हैं। (9) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (28) lights and each next gate has (7) more lights. How many lights are there on (9) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is A. (504). The light numbers are \(28,35,42,\ldots\) and \(S_9=504\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(28,35,42,\ldots\) है और \(S_9=504\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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एक त्योहार सजावट में पहले गेट पर (30) लाइटें हैं और हर अगले गेट पर (5) लाइटें अधिक हैं। (8) गेटों पर कुल कितनी लाइटें होंगी?
In a festival decoration the first gate has (30) lights and each next gate has (5) more lights. How many lights are there on (8) gates?
Explanation opens after your attempt
Step 1
Concept
The light numbers are \(30,35,40,\ldots\) and \(S_8=380\). Exam tip: treat each gate as one term.
Step 2
Why this answer is correct
The correct answer is B. (380). The light numbers are \(30,35,40,\ldots\) and \(S_8=380\). Exam tip: treat each gate as one term.
Step 3
Exam Tip
लाइटों की संख्या \(30,35,40,\ldots\) है और \(S_8=380\)। परीक्षा में प्रत्येक गेट को एक पद मानें।
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