What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?5 – 4 ÷ 9 + 80 × 10 = ? Option a) 31b) 33c) 35d) 30 Solution By interchanging ‘+’ with ‘–‘ and ‘×’ with ‘÷’5 – 4 ÷ 9 + […]
5 – 4 ÷ 9 + 80 × 10 = ? Read More »
Six letters S, T, M, P, R and C are written on different face of a dice. Two positions of this dice are shown in the figure below. Find the letter on the face opposite to M. Option:a) Cb) Rc) Sd) P Solution: In both Dice T is Common As per rule + write face
Simplify Optionsa) 25.5b) 28.7c) 23.6d) 30.2 Solution As per questionLet thea = 8.3b = 9.2c = 6.1a3+b3+c3-3abc = (a+b+c)(a2+b2+c2-ab-bc-ca) = (a+b+c)Put value in (a+b+c)8.3+9.2+6.1 = 23.6 Answer: c) 23.6
Simplify(8.3)3+(9.2)3+(6.1)3−3×8.3×9.2×6.1/(8.3)2+(9.2)2+(6.1)2−8.3×9.2−9.2×6.1×8.3 Read More »
If a right circular cone of height 24 cm has a volume of 1232 cm3 ,then the total surface area of the cone is (use π=22/7) Optionsa) 704 cm2b) 806 cm2c) 904 cm2d) 608 cm2 Solution As per questionVolume of cone = Total curved surface area = πrl+πr2l2 = r2 + h2r = radiush = heightl
दिए गए आरेख का ध्यानपूर्वक अध्ययन करें और निम्नलिखित प्रश्न का उत्तर दें। विभिन्न खंडों में दी गई संख्याएं अलग-अलग पदों के लिए आवेदन करने वाले व्यक्तियों की संख्या को दर्शाती हैं। एक से अधिक पदों के लिए आवेदन करने वाले व्यक्तियों की कुल संख्या कितनी है? Teacher – अध्यापकEngineer – अभियंताAccountant – लेखाकार Optionsa)
What is the value of D, if A : C = B : D in the given table? A B C D 25 40 30 ? Optionsa) 42b) 45c) 48d) 56 Solution As per questionA : C = B : D25D = 1200D = 48 Ans: 48
What is the value of D, if A : C = B : D in the given table? Read More »
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘ and ’ are interchanged? Optionsa) 1335b) 1775c) 1575d) 1375 Solution change symbol903 + 1293 – 821 903 + 4721375 Correct Answer : d) 1375
What is the ratio of male research scholars in Mathematics to Statistics? Optionsa) 7 : 6b) 14 : 9c) 6 : 7d) 9 : 14 Solution As per questionRatio of male research scholars in Mathematics to StatisticsMathematics : Statistics18 – 4 : 12 – 314 : 9 Answer: 14:9
A bus travels 1/3 of distance initially at a speed of 40 km/h, the next 1/3 of the distance 50km/h, and the final 1/3 of the distance at 60 km/h. Find the average speed of the bus for the entire journey. (Rounded off to two decimal places) Optionsa) 48.65 km/hb) 46.85 km/hc) 54.13 km/hd) 51.43 km/h Solution Let the Total Distance
If = 12, then find the value of Optionsa) 142b) 140c) 146d) 144 Solution As per question = 12Square both side = (12)2 = 144 = 144 = 144 – 2 = 142 Answer: 142
If a+1/a = 12, then find the value of a2+1/a2 Read More »