Related Questions

The electricity bill of a certain establishment is partially fixed and partially varies as the number of units of electricity consumed. Wen in a certain month 540 units are sonsumed. the bill is TK 1800. In another month 620 units are consumed are the bill is Tk 2040. Inayet another month if 500 units are consumed what would be the bill (in Tk) for that month?
A 1950
B 1560
C 1840
D 1680
If machine A polishes x units in 12 minutes and machine B polishes 5x units in 40 minutes, in how many minutes will A and B. working together, polish 50x units?
A 240
B 300
C 350
D 120
দুইটি বিপরীতমুখী বলদ্বয়ের লব্ধি 12 units এবং বলদ্বয় হতে যথাক্রমে 3 units এবং 4 units দূরে ক্রিয়াশীল। বলদ্বয়ের মান কত?
A 48 and 36 units
B 48 and 48 units
C 40 and 36 units
D 40 and 40 units
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units
Effects of shear force and axial force on plastic moment capacity of a structure are respectively to
A Increase and decrease
B Increase and increase
C Decrease and increase
D Decrease and decrease
2.5 m দীর্ঘ একটি ইস্পাতের সুষম তারের ভর 16 gm এবং ঘনত্ব 7800kg/m3। 80 N বলে টানা দিলে তারটির দৈর্ঘ্য প্রসারণ হয় 1.2 mm. ঐ তারের মধ্যে সঞ্চিত স্থিতিশক্তি কত ?(The mass and density of a 2.5 m long uniform steel wire are 16 gm and 7800 kg/m3. respectively. The elongation of the wire is 1.2 mm when 80 N force is applied on it. What is stored potential energy of the wire?)
A 4.8×10-2 J
B 4.8 J
C 4.8×102 J
D 48 J
E 480 J
A, B and C received an amount of Rs 8400 and distributed among themselves in the ratio of 6 : 8 : 7 respectively. If they save in the ratio of 3 : 2 : 4 respectively and B saves Rs 400, then what is the ratio of the expenditures of A, B and C respectively?
A 6 : 8 : 7
B 8 : 6 : 7
C 9 : 14 : 10
D 12 : 7 : 9
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by
A 2WCE/CS
B WCE/2CS
C WCE/CS
D WCS/2CE
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in
A Raman spectra
B Absorption spectra
C Emission spectra
D Fluorescence
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to
A $${\text{A}}$$
B $$\frac{{\text{A}}}{2}$$
C $$\frac{{\text{A}}}{{\sqrt 2 }}$$
D $${\text{A}}\sqrt 2 $$

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