Home›MPPSC Prelims›Paper 2: General Aptitude Test (CSAT)›General Aptitude›Basic Numeracy and Data Interpretation›Basic Numeracy: Numbers and their Relations, Order of Magnitude (Class X level)›In a cricket match, five batsmen A, B, C, D and E scored an average

In a cricket match, five batsmen A, B, C, D and E scored an average of 41 runs. D scored 5 more than E; E scored 8 fewer than A; B scored 5 fewer than D and E combined; B and C scored 117 between them. How many runs did C score ?

20242Mprelimsyear-2024p2
A.(A) 37
B.(B) 85
C.(C) 67Correct
D.(D) 53
Explanation & Solution

The correct answer is (C) 67.

Step-by-step algebraic formulation:

  • Average of 5 batsmen = 41   ⟹  A+B+C+D+E=41×5=205  ⟹  \implies⟹ A + B + C + D + E = 41 ×\times× 5 = 205⟹A+B+C+D+E=41×5=205.
  • Given relationships in terms of EEE:
  • D=E+5D = E + 5D=E+5
  • E=A−8  ⟹  A=E+8E = A - 8   ⟹  \implies⟹ A = E + 8E=A−8⟹A=E+8
  • B=(D+E)−5=(E+5+E)−5=2EB = (D + E) - 5 = (E + 5 + E) - 5 = 2EB=(D+E)−5=(E+5+E)−5=2E
  • Substitute into total sum: (E+8)+2E+C+(E+5)+E=205  ⟹  5E+C+13=205  ⟹  5E+C=192(E + 8) + 2E + C + (E + 5) + E = 205   ⟹  \implies⟹ 5E + C + 13 = 205   ⟹  \implies⟹ 5E + C = 192(E+8)+2E+C+(E+5)+E=205⟹5E+C+13=205⟹5E+C=192.
  • Given: B+C=117  ⟹  2E+C=117B + C = 117   ⟹  \implies⟹ 2E + C = 117B+C=117⟹2E+C=117.
  • Subtracting the two equations: (5E+C)−(2E+C)=192−117  ⟹  3E=75  ⟹  E=25(5E + C) - (2E + C) = 192 - 117   ⟹  \implies⟹ 3E = 75   ⟹  \implies⟹ E = 25(5E+C)−(2E+C)=192−117⟹3E=75⟹E=25.
  • Then C=117−2(25)=117−50=<strong>67</strong>C = 117 - 2(25) = 117 - 50 = <strong>67</strong>C=117−2(25)=117−50=<strong>67</strong> runs.

हिंदी में प्रश्न एवं आदर्श उत्तर

एक क्रिकेट मैच में, पाँच बल्लेबाजों A, B, C, D और E ने औसतन 41 रन बनाए। D ने E से 5 रन अधिक बनाए; E ने A से 8 रन कम बनाए; B ने D और E के संयुक्त स्कोर से 5 रन कम बनाए; B और C ने अपने बीच 117 रन बनाए। C ने कितने रन बनाए ?

A.(A) 37
B.(B) 85
C.(C) 67सही
D.(D) 53

सही उत्तर (C) 67 है।

चरणबद्ध बीजगणितीय हल:

  • 5 बल्लेबाजों का कुल योग =41×5=205= 41 ×\times× 5 = 205=41×5=205 रन।
  • EEE के पदों में मान:
  • D=E+5D = E + 5D=E+5
  • A=E+8A = E + 8A=E+8
  • B=(D+E)−5=2EB = (D + E) - 5 = 2EB=(D+E)−5=2E
  • कुल योग में रखने पर: (E+8)+2E+C+(E+5)+E=205  ⟹  5E+C=192(E + 8) + 2E + C + (E + 5) + E = 205   ⟹  \implies⟹ 5E + C = 192(E+8)+2E+C+(E+5)+E=205⟹5E+C=192 (समीकरण 1)।
  • प्रश्नानुसार: B+C=117  ⟹  2E+C=117B + C = 117   ⟹  \implies⟹ 2E + C = 117B+C=117⟹2E+C=117 (समीकरण 2)।
  • समीकरण 1 में से 2 घटाने पर: 3E=75  ⟹  E=253E = 75   ⟹  \implies⟹ E = 253E=75⟹E=25।
  • अतः C=117−2(25)=117−50=<strong>67</strong>C = 117 - 2(25) = 117 - 50 = <strong>67</strong>C=117−2(25)=117−50=<strong>67</strong> रन।
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