Speed of a boat is 6 km/hr is still water and the speed of the stream is 1 km/hr. If the boat takes 12 hours to go to a place and come back, then what is the distance (in km) of the place?
  • a)
    21
  • b)
    28
  • c)
    35
  • d)
    70
Correct answer is option 'C'. Can you explain this answer?

Knowledge Hub answered  •  6 hours ago
Given,
Speed of boat = u = 6 km/hr
Speed of stream = v = 1 km/hr
Speed of boat in downstream = (u + v) = 7 km/hr
Speed of boat in upstream = (u - v) = 5 km/hr
If the boat takes 12 hours to go to a place and come back,
The equation is

A person bought a cycle and sold it at a loss of 10%. If he had bought it for 20% less and sold it for Rs. 55 more, he would have had a profit of 40%. Find the profit percentage if he sold the cycle at Rs. 320.
  • a)
    20%
  • b)
    28%
  • c)
    18%
  • d)
    25%
Correct answer is option 'B'. Can you explain this answer?

Learners World answered  •  2 days ago
Suppose the cost price is Rs. x, then the selling price = 0.9x
If he had bought it for 20% less and sold it for Rs. 55 more, he would have had a profit of 40%
⇒ 0.8x × 1.4 = 0.9x + 55
⇒ 0.22x = 55
⇒ x = 250
∴ Profit percentage if he sold the cycle at Rs. 320 = [320 - 250] /250 = 28%

The area of quadrilateral whose diagonal is 12 cm and the lengths of perpendiculars draws from opposite vertices are 5 cm and 3.5 cm respectively is
  • a)
    40 sq. cm
Correct answer is option ''. Can you explain this answer?

Krishan Kumar answered  •  3 days ago
Given,
The diagonal divides the quadrilateral into two triangles.
Area of quadrilateral = area of 1st triangle + area of 2nd triangle
= 1/2 × 12 × 5 + 1/2 × 12 × 3.5
= 30 + 21 = 51 sq. cm

Brandon Stark asked   •  yesterday

Passage – I
As financial markets worldwide tumbled over concerns that Greece would default on its debt to the troika comprising the European Commission, the European Central Bank and the International Monetary Fund, the people of Greece were being presented with a Hobson’s choice by its government led by the leftist party platform, Syriza. In the midst of intense negotiations with representatives of the troika over rolling over debt payments, the Syriza government sought to extend the deadline for payments in order to allow it to put the conditionalities of the troika for a bailout extension to a referendum vote. Prime Minister Alexis Tsipras has denied that this referendum, scheduled for July 5, is on whether or not to continue within the eurozone; he says it is only on the acceptance of the troika’s demands. But with the troika unrelenting on the June 30 deadline for repayment of debts to the IMF, and Greece being in no position to pay, the referendum could more or less be on remaining in the eurozone. This presents a difficult choice for the people of Greece. After all, the Syriza was voted to power in January 2015 precisely on the promise of halting the programme of austerity imposed by creditors that has resulted in a drastic contraction of Greece’s economy and increase in unemployment. Yet, the mandate was also for negotiations to remain within the eurozone as Greek voters had realised that the Grexit would mean too much pain (at least in the near term) due to capital flight, a run on the banks and other troubles in returning to the drachma as currency. Over the past five months, Syriza representatives, true to their mandate, have sought to alter Greece’s terms of engagement with its creditors, seeking debt relief that would allow fiscal expansionary policies to spur the economy. Yet, the troika’s response has been to stonewall the proposals and instead push Greece to further the austerity measures it has pursued following the first major bailout in 2010 and another in 2012. The troika’s reasoning is simple: tolerating a Greek default would amount to sending signals to other creditor-nations about similar leniency. Instead, the troika has merely offered a five-month extension of Greece’s bailout programme with fresh funds but with persisting austerity conditions. With barely a concession to the Greek position, there remains a wide gap between the Greek people’s expectations and the EU recommendations. With Greece already having to impose capital controls and bank holidays to avoid further capital flight — measures that were supposed to be taken in the event of an exit from the EU — it begs the question whether the Grexit is inevitable.
 
Q. Which of the following can be true according to the passage?
(A) Syriza was voted to power in January 2015 precisely on the promise of halting the programme of austerity imposed by creditors.
(B) Alexis Tsipras has denied that this referendum, scheduled for July 5, is on whether or not to continue within the Eurozone.
(C) The troika’s reasoning is simple: tolerating a Greek default would amount to sending signals to other creditor-nations about similar leniency.
... more

Ashish Goyal asked   •  2 days ago

एक शब्द केवल एक संख्या-समूह द्वारा दर्शाया गया है, जैसा कि विकल्पों में से किसी एक में दिया गया है। विकल्पों में दिए गए संख्या समूह, अक्षरों के दो वर्गो द्वारा दर्शाए गए हैं, जैसा कि नीचे दिए गए मैट्रिक्स में है। मैट्रिक्स-I के स्तम्भों और पंक्तियों की संख्या 0 से 4 दी गई है और मैक्ट्रिस-II की 0, 5 से 8। मैट्रिक्स से एक अक्षर को पहले उसकी पंक्ति और फिर स्तम्भ संख्या द्वारा बताया जा सकता है। उदाहरण के लिए 'D' को 03, 10 आदि द्वारा बताया जा सकता है तथा 'J' को 56,65,आदि द्वारा बताया जा सकता है। इसी तरह से आपको शब्द के लिए संख्या समूह 'BLACK' को पहचानना है। 
                     
  • a)
    11, 66, 57, 20, 76
  • b)
    20, 76, 12, 57, 66
  • c)
    66, 12, 20, 11, 57
  • d)
    11, 66, 12, 20, 57
Correct answer is option 'D'. Can you explain this answer?

Fetching relevant content for you